English
全部
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
笔记本
报告不当内容
请选择下列任一选项。
无关
低俗内容
成人
儿童性侵犯
时长
全部
短(小于 5 分钟)
中(5-20 分钟)
长(大于 20 分钟)
日期
全部
过去 24 小时
过去一周
过去一个月
去年
清晰度
全部
低于 360p
360p 或更高
480p 或更高
720p 或更高
1080p 或更高
源
全部
Dailymotion
Vimeo
Metacafe
Hulu
VEVO
Myspace
MTV
CBS
Fox
CNN
MSN
价格
全部
免费
付费
重置
安全搜索:
中等
严格
中等(默认)
关闭
筛选器
购买 AC Variable Speed vs One Speed
赞助
$194.99
Lavex Variable Speed Low-Profile Air Mover With GFCI Power Outlets - 820 CFM, 115V
WebstaurantStore
$194.99
Lavex Variable Speed Low-Profile Air Mover With GFCI Power Outlets - 820 CFM, 115V
WebstaurantStore
$3,995.00
2 To 3 Ton 18 SEER Variable Speed Mrcool Universal Central Heat Pump Split System - Upflow/Horizontal With Quick Connect Lineset - 50 Feet
Amazon.com
104
Free shipping
$3,995.00
2 To 3 Ton 18 SEER Variable Speed Mrcool Universal Central Heat Pump Split System - Upflow/Horizontal With Quick Connect Lineset - 50 Feet
Amazon.com
104
$24.88
TKXEC Adjustabe 4000W AC 110V Motor Speed Controller Angle Grinder, Hand Electric Drill Polishing Machine Fan Speed Controller Variable Speed
Amazon.com
11
$24.88
TKXEC Adjustabe 4000W AC 110V Motor Speed Controller Angle Grinder, Hand Electric Drill Polishing Machine Fan Speed Controller Variable Speed
Amazon.com
11
$795.00
Circupool Smartflo® Variable Speed Pool Pump - Ultra Energy Efficient - 1.5 THP (Fits Most Pentair Pumps)
Discount Salt Pool
1
$795.00
Circupool Smartflo® Variable Speed Pool Pump - Ultra Energy Efficient - 1.5 THP (Fits Most Pentair Pumps)
Discount Salt Pool
1
$522.99
VFD AC 220V 15KW 20HP 55A Variable Frequency Drive,VFD Inverter Single Phase To 3 Phase Frequency Converter For Spindle Motor CNC Speed Control,K100
Amazon.com
105
Free shipping
$522.99
VFD AC 220V 15KW 20HP 55A Variable Frequency Drive,VFD Inverter Single Phase To 3 Phase Frequency Converter For Spindle Motor CNC Speed Control,K100
Amazon.com
105
$27.99
Versatile AC Motor Speed Controller - 100V-120V, 15A Max - Electric Fan Speed Regulator With Overload Protection, Electronic Voltage Regulation, And
Amazon.com
94
$27.99
Versatile AC Motor Speed Controller - 100V-120V, 15A Max - Electric Fan Speed Regulator With Overload Protection, Electronic Voltage Regulation, And
Amazon.com
94
$29.99
Eiovnur Big Airflow 2 X 120mm 240mm AC 110V 120V 220V 240V Variable Speed Fan For Mining Machine Cabinet Chassis Server Workstation Cooling
Amazon.com
23
$29.99
Eiovnur Big Airflow 2 X 120mm 240mm AC 110V 120V 220V 240V Variable Speed Fan For Mining Machine Cabinet Chassis Server Workstation Cooling
Amazon.com
23
$89.00
$129.00
Bosch Colt Electronic Variable-Speed Palm Router - PR20EVS
Acme Tools
4 千+
折扣 31%
$89.00
$129.00
Bosch Colt Electronic Variable-Speed Palm Router - PR20EVS
Acme Tools
4 千+
$25.99
SCR Voltage Controller AC 110V 220V/15A/ 4000W Variable Speed Controller Fit For Router Fan Electric Motor Rheostat Black
Amazon.com
40
$25.99
SCR Voltage Controller AC 110V 220V/15A/ 4000W Variable Speed Controller Fit For Router Fan Electric Motor Rheostat Black
Amazon.com
40
$200.99
DEWALT 2.25-HP Variable Speed Fixed Corded Router - DW618K
Acme Tools
251
$200.99
DEWALT 2.25-HP Variable Speed Fixed Corded Router - DW618K
Acme Tools
251
$243.99
DEWALT 2.25-HP Variable Speed Fixed Corded Router - DW618D
Acme Tools
49
$243.99
DEWALT 2.25-HP Variable Speed Fixed Corded Router - DW618D
Acme Tools
49
$122.93
Variable Speed Motor 250W 5K 110V Ac Slow Down Motor Low Speed Mini
eBay
Free shipping
$122.93
Variable Speed Motor 250W 5K 110V Ac Slow Down Motor Low Speed Mini
eBay
Free shipping
$749.99
Senville LETO Series Mini Split Air Conditioner Heat Pump, 9000 BTU 110/120V, Inverter, Works With Alexa, SEER2 21.5, White
Amazon.com
4 千+
Free shipping
$749.99
Senville LETO Series Mini Split Air Conditioner Heat Pump, 9000 BTU 110/120V, Inverter, Works With Alexa, SEER2 21.5, White
Amazon.com
4 千+
$1,499.99
Furrion Chill Cube 18K Variable Speed RV Air Conditioner, Ducted, White | Camping World
Camping World
Free shipping
$1,499.99
Furrion Chill Cube 18K Variable Speed RV Air Conditioner, Ducted, White | Camping World
Camping World
Free shipping
$86.96
$114.99
110V 120W AC Gear Motor Electric Variable Speed Reduction Controller 1:10 135RPM, Vfd Speed Controller Ac 110V,Motor Speed Controller 120Vac,Gear
Temu US
折扣 24%
$86.96
$114.99
110V 120W AC Gear Motor Electric Variable Speed Reduction Controller 1:10 135RPM, Vfd Speed Controller Ac 110V,Motor Speed Controller 120Vac,Gear
Temu US
$489.99
Varpoolfaye 1.8 HP Variable Speed Pool Pump Above Ground Swimming Pool Pump Inground High Flow 9114 GPH 220-240V 60Hz Self Priming Pool Pumps With
Amazon.com
Free shipping
$489.99
Varpoolfaye 1.8 HP Variable Speed Pool Pump Above Ground Swimming Pool Pump Inground High Flow 9114 GPH 220-240V 60Hz Self Priming Pool Pumps With
Amazon.com
Free shipping
$123.55
Ac Gear Reduction Motor Electric+Variable Speed Control Reversible
eBay
Free shipping
$123.55
Ac Gear Reduction Motor Electric+Variable Speed Control Reversible
eBay
Free shipping
$88.07
90W AC Gear Motor Electric Variable Speed Controller Torque Single Phase 5K
eBay
Free shipping
$88.07
90W AC Gear Motor Electric Variable Speed Controller Torque Single Phase 5K
eBay
Free shipping
$60.75
AC Gear Motor Electric Motor Variable Speed Controller 5K 270RPM Reversible 110V
eBay
Free shipping
$60.75
AC Gear Motor Electric Motor Variable Speed Controller 5K 270RPM Reversible 110V
eBay
Free shipping
$154.03
Metabo HPT Angle Grinder | 4-1/2-Inch | 12 Amp | AC Brushless Motor | Variable Speed | 3-Position Side Handle | G12VE2
Amazon.com
194
Free shipping
$154.03
Metabo HPT Angle Grinder | 4-1/2-Inch | 12 Amp | AC Brushless Motor | Variable Speed | 3-Position Side Handle | G12VE2
Amazon.com
194
$36.25
KB Electronics 8811013 Solid State Variable Speed AC Electric Motor Control, 10.0 Max Amp, 115V, K177-1010
Amazon.com
1 千+
$36.25
KB Electronics 8811013 Solid State Variable Speed AC Electric Motor Control, 10.0 Max Amp, 115V, K177-1010
Amazon.com
1 千+
$549.99
$687.49
Doheny's Pool Pro VS Variable Speed Inground Pump, 1.5 HP 230V
Doheny's
折扣 20%
$549.99
$687.49
Doheny's Pool Pro VS Variable Speed Inground Pump, 1.5 HP 230V
Doheny's
$39.78
Ac Motor Speed Controller 120V 15A Max Ac Variable Speed Controller Electronic V
US eBay
Free shipping
$39.78
Ac Motor Speed Controller 120V 15A Max Ac Variable Speed Controller Electronic V
US eBay
Free shipping
$319.95
Xtremepowerus 1.5HP Variable Speed Whisper Above Ground Swimming Pool Pump Beige
Amazon.com
17
Free shipping
$319.95
Xtremepowerus 1.5HP Variable Speed Whisper Above Ground Swimming Pool Pump Beige
Amazon.com
17
$59.99
DART CONTROLS 125DV-C-K Variable Speed DC Control Module 120V AC Subfactional
eBay.com
Free shipping
$59.99
DART CONTROLS 125DV-C-K Variable Speed DC Control Module 120V AC Subfactional
eBay.com
Free shipping
$147.99
7 Amp Corded 1-1/4 HP Max Torque Variable Speed Compact Router With Leds
Home Depot
1
Free shipping
$147.99
7 Amp Corded 1-1/4 HP Max Torque Variable Speed Compact Router With Leds
Home Depot
1
$50.62
6W Ac 110Vgeared Motor Electric Motor Variable Speed Controller 1:10 135Rpm
eBay
Free shipping
$50.62
6W Ac 110Vgeared Motor Electric Motor Variable Speed Controller 1:10 135Rpm
eBay
Free shipping
$186.69
HVBS-56V, 5 in. X 6 in. VS Horizontal/Vertical Variable Speed Bandsaw, 1/2 HP,1-PH
astrids.us
Free shipping
$186.69
HVBS-56V, 5 in. X 6 in. VS Horizontal/Vertical Variable Speed Bandsaw, 1/2 HP,1-PH
astrids.us
Free shipping
$229.95
110V Speed Reversible Variable Ac Gear Electric Motor 5-470 Rpm 200W
eBay
Free shipping
$229.95
110V Speed Reversible Variable Ac Gear Electric Motor 5-470 Rpm 200W
eBay
Free shipping
$147.20
$161.76
250W AC Gear Reduction Motor Electric+Variable Speed Control Reversible 110V US
eBay
Free shipping
$147.20
$161.76
250W AC Gear Reduction Motor Electric+Variable Speed Control Reversible 110V US
eBay
Free shipping
$534.46
Schneider Electric ATV320U02M2W Variable Speed Drive, 1Ph, 1.5A, 180W Rohs Compliant: Yes | AC Motor Drives
Newark
$534.46
Schneider Electric ATV320U02M2W Variable Speed Drive, 1Ph, 1.5A, 180W Rohs Compliant: Yes | AC Motor Drives
Newark
$142.05
AC Gear Reduction Motor Electric+Variable Speed Control Reversible 110V 250W New
eBay
$142.05
AC Gear Reduction Motor Electric+Variable Speed Control Reversible 110V 250W New
eBay
$489.98
AC TECH Q22002SE VARIABLE SPEED AC DRIVE 2HP
US eBay
Free shipping
$489.98
AC TECH Q22002SE VARIABLE SPEED AC DRIVE 2HP
US eBay
Free shipping
$50.02
$55.58
AC Gear Motor Electric+ Variable Speed Reduction Controller 135Rpm Torque 1:10!
eBay
Free shipping
折扣 10%
$50.02
$55.58
AC Gear Motor Electric+ Variable Speed Reduction Controller 135Rpm Torque 1:10!
eBay
Free shipping
$117.95
220VAC Variable Frequency Drive VFD Speed Controller For 2.2Kw AC Motor New
US eBay
Free shipping
$117.95
220VAC Variable Frequency Drive VFD Speed Controller For 2.2Kw AC Motor New
US eBay
Free shipping
$339.93
400W Speed Reversible Variable Ac Gear Electric Motor 7-470 Rpm 110V
eBay
Free shipping
$339.93
400W Speed Reversible Variable Ac Gear Electric Motor 7-470 Rpm 110V
eBay
Free shipping
3:04
3-phase AC Variable Speed Drive System
已浏览 5371 次
2020年2月6日
Facebook
TESLA Institute - Electrical Engineering, Electr…
2:56
AC Variable Speed Drive System
已浏览 1657 次
2020年7月23日
Facebook
InstrumentationTools
One-Stage, Two-Stage & Variable-Speed ACs: Differences & Benefit
…
2020年7月16日
indoortemp.com
What Are The Pros And Cons Of A Variable-Speed Air Handler?
2021年9月4日
upgradedhome.com
6:44
Speed vs. Velocity | Definition, Formula & Calculations
已浏览 39.8万 次
2013年1月30日
Study.com
2:11:51
Difference Between AC And DC - Definitions, Comparison, Video, a
…
已浏览 3万 次
2022年11月9日
byjus.com
2:27
Furnace Motor Comparison
已浏览 2392 次
2021年1月5日
YouTube
Habegger Help
11:30
DIY Variable AC Power Supply
已浏览 6.8万 次
2015年10月31日
YouTube
smbakeryt
8:05
Multisim Basic AC Simulations
已浏览 1.2万 次
2020年7月13日
YouTube
Electronics with Professor Fiore
9:45
Furnace Motor Types
已浏览 1.6万 次
2019年5月8日
YouTube
Tec Tube
6:24
AC vs. DC
已浏览 154.7万 次
2014年1月15日
YouTube
Chris Mahl
7:39
How an A/C Compressor Works
已浏览 97.2万 次
2018年9月1日
YouTube
speedkar99
7:13
AC vs DC
已浏览 2.9万 次
2020年7月21日
YouTube
The Organic Chemistry Tutor
2:39
What Are Compressor Stages?
已浏览 4万 次
2018年6月7日
YouTube
HVACDirect
7:00
Curtis 1313 Handheld Programmer
已浏览 4.2万 次
2017年9月5日
YouTube
curtismarcom
8:48
How a Variable A/C Compressor Works
已浏览 14.6万 次
2020年3月23日
YouTube
speedkar99
18:40
Speed vs. Velocity
已浏览 5.6万 次
2019年8月26日
YouTube
The Physics Classroom
8:01
How A Variable Displacement AC Compressor Works
已浏览 1.1万 次
2021年8月2日
YouTube
Rogue Wrenching
5:47
Clutchless Variable Displacement Compressor
已浏览 43.4万 次
2013年7月9日
YouTube
ADPTraining
11:49
Variable Air Volume - VAV system HVAC
已浏览 52.9万 次
2017年2月27日
YouTube
The Engineering Mindset
36:59
Introduction to AC Circuit Analysis (Full Lecture)
已浏览 7.2万 次
2017年5月19日
YouTube
Jim Pytel
14:44
All the V SPEEDS you need to know | Simply explained.
已浏览 5.3万 次
2021年2月2日
YouTube
flight-club
6:02
Variable Speed Controllers - Ceiling Fans
已浏览 1.2万 次
2019年11月28日
YouTube
Brendanlyons12
22:21
Build A Simple VFD or Variable Frequency Drive!
已浏览 21.1万 次
2017年12月18日
YouTube
Mr Carlson's Lab
29:04
AC Power Control with Arduino
已浏览 8.2万 次
2013年9月21日
YouTube
Lewis Loflin
5:56
AC vs. DC Power | Science Shorts
已浏览 1056 次
2021年3月4日
YouTube
One Power Company
31:50
Ford AC Trouble ! (Variable AC compressor)
已浏览 38.5万 次
2018年9月7日
YouTube
DiagnoseDan
2:20
How Does A Vertical Speed Indicator Work?
已浏览 20.5万 次
2015年7月23日
YouTube
Boldmethod
4:56
How does CONSTANT SPEED PROPELLER work?
已浏览 17.8万 次
2019年12月23日
YouTube
flight-club
17:28
Single Speed Vs. Variable Speed Cost Comparison
已浏览 6.1万 次
2020年7月10日
YouTube
Swimming Pool Steve
观看更多视频
更多类似内容
购买 AC Variable Speed vs One Speed
赞助
$194.99
Lavex Variable Speed Low-Profile Air Mover With GFCI Power Outlets - 820 CFM, 115V
WebstaurantStore
$194.99
Lavex Variable Speed Low-Profile Air Mover With GFCI Power Outlets - 820 CFM, 115V
WebstaurantStore
$3,995.00
2 To 3 Ton 18 SEER Variable Speed Mrcool Universal Central Heat Pump Split System - Upflow/Horizontal With Quick Connect Lineset - 50 Feet
Amazon.com
104
Free shipping
$3,995.00
2 To 3 Ton 18 SEER Variable Speed Mrcool Universal Central Heat Pump Split System - Upflow/Horizontal With Quick Connect Lineset - 50 Feet
Amazon.com
104
$24.88
TKXEC Adjustabe 4000W AC 110V Motor Speed Controller Angle Grinder, Hand Electric Drill Polishing Machine Fan Speed Controller Variable Speed
Amazon.com
11
$24.88
TKXEC Adjustabe 4000W AC 110V Motor Speed Controller Angle Grinder, Hand Electric Drill Polishing Machine Fan Speed Controller Variable Speed
Amazon.com
11
$795.00
Circupool Smartflo® Variable Speed Pool Pump - Ultra Energy Efficient - 1.5 THP (Fits Most Pentair Pumps)
Discount Salt Pool
1
$795.00
Circupool Smartflo® Variable Speed Pool Pump - Ultra Energy Efficient - 1.5 THP (Fits Most Pentair Pumps)
Discount Salt Pool
1
$522.99
VFD AC 220V 15KW 20HP 55A Variable Frequency Drive,VFD Inverter Single Phase To 3 Phase Frequency Converter For Spindle Motor CNC Speed Control,K100
Amazon.com
105
Free shipping
$522.99
VFD AC 220V 15KW 20HP 55A Variable Frequency Drive,VFD Inverter Single Phase To 3 Phase Frequency Converter For Spindle Motor CNC Speed Control,K100
Amazon.com
105
$27.99
Versatile AC Motor Speed Controller - 100V-120V, 15A Max - Electric Fan Speed Regulator With Overload Protection, Electronic Voltage Regulation, And
Amazon.com
94
$27.99
Versatile AC Motor Speed Controller - 100V-120V, 15A Max - Electric Fan Speed Regulator With Overload Protection, Electronic Voltage Regulation, And
Amazon.com
94
$29.99
Eiovnur Big Airflow 2 X 120mm 240mm AC 110V 120V 220V 240V Variable Speed Fan For Mining Machine Cabinet Chassis Server Workstation Cooling
Amazon.com
23
$29.99
Eiovnur Big Airflow 2 X 120mm 240mm AC 110V 120V 220V 240V Variable Speed Fan For Mining Machine Cabinet Chassis Server Workstation Cooling
Amazon.com
23
$89.00
$129.00
Bosch Colt Electronic Variable-Speed Palm Router - PR20EVS
Acme Tools
4 千+
折扣 31%
$89.00
$129.00
Bosch Colt Electronic Variable-Speed Palm Router - PR20EVS
Acme Tools
4 千+
$25.99
SCR Voltage Controller AC 110V 220V/15A/ 4000W Variable Speed Controller Fit For Router Fan Electric Motor Rheostat Black
Amazon.com
40
$25.99
SCR Voltage Controller AC 110V 220V/15A/ 4000W Variable Speed Controller Fit For Router Fan Electric Motor Rheostat Black
Amazon.com
40
$200.99
DEWALT 2.25-HP Variable Speed Fixed Corded Router - DW618K
Acme Tools
251
$200.99
DEWALT 2.25-HP Variable Speed Fixed Corded Router - DW618K
Acme Tools
251
$243.99
DEWALT 2.25-HP Variable Speed Fixed Corded Router - DW618D
Acme Tools
49
$243.99
DEWALT 2.25-HP Variable Speed Fixed Corded Router - DW618D
Acme Tools
49
$122.93
Variable Speed Motor 250W 5K 110V Ac Slow Down Motor Low Speed Mini
eBay
Free shipping
$122.93
Variable Speed Motor 250W 5K 110V Ac Slow Down Motor Low Speed Mini
eBay
Free shipping
$749.99
Senville LETO Series Mini Split Air Conditioner Heat Pump, 9000 BTU 110/120V, Inverter, Works With Alexa, SEER2 21.5, White
Amazon.com
4 千+
Free shipping
$749.99
Senville LETO Series Mini Split Air Conditioner Heat Pump, 9000 BTU 110/120V, Inverter, Works With Alexa, SEER2 21.5, White
Amazon.com
4 千+
$1,499.99
Furrion Chill Cube 18K Variable Speed RV Air Conditioner, Ducted, White | Camping World
Camping World
Free shipping
$1,499.99
Furrion Chill Cube 18K Variable Speed RV Air Conditioner, Ducted, White | Camping World
Camping World
Free shipping
$86.96
$114.99
110V 120W AC Gear Motor Electric Variable Speed Reduction Controller 1:10 135RPM, Vfd Speed Controller Ac 110V,Motor Speed Controller 120Vac,Gear
Temu US
折扣 24%
$86.96
$114.99
110V 120W AC Gear Motor Electric Variable Speed Reduction Controller 1:10 135RPM, Vfd Speed Controller Ac 110V,Motor Speed Controller 120Vac,Gear
Temu US
$489.99
Varpoolfaye 1.8 HP Variable Speed Pool Pump Above Ground Swimming Pool Pump Inground High Flow 9114 GPH 220-240V 60Hz Self Priming Pool Pumps With
Amazon.com
Free shipping
$489.99
Varpoolfaye 1.8 HP Variable Speed Pool Pump Above Ground Swimming Pool Pump Inground High Flow 9114 GPH 220-240V 60Hz Self Priming Pool Pumps With
Amazon.com
Free shipping
$123.55
Ac Gear Reduction Motor Electric+Variable Speed Control Reversible
eBay
Free shipping
$123.55
Ac Gear Reduction Motor Electric+Variable Speed Control Reversible
eBay
Free shipping
$88.07
90W AC Gear Motor Electric Variable Speed Controller Torque Single Phase 5K
eBay
Free shipping
$88.07
90W AC Gear Motor Electric Variable Speed Controller Torque Single Phase 5K
eBay
Free shipping
反馈