If fan blade assembly is replaced because of mechanical damage, water pump and viscous fan drive should also be inspecteThese components could have been damaged due to excessive vibration.

如果因为机械损坏而更换风扇叶片组合，应该检查水泵及粘性风扇驱动，这些组件可能由于过度抖动而损坏。

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The special inverter and pump for photovoltaic water pump is expensive and making using of general inverter to drive general water pump can not tracks point of maximal power.

目前光伏水泵的推广面临两个方面的障碍，一方面是应用较多的专用型光伏机泵成本较高；另一方面利用通用变频器驱动通用机泵时光伏利用率低。

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A water-cooling system consists of the engine water jacket, thermostat, water pump, radiator, radiator cap, fan, fan drive belt and necessary hoses.

水冷系统由发动机水套、节温器、水泵、散热器(水箱)、散热器盖、风扇、风扇驱动皮带和必要的软管组成。

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Further alterations were later made, including changes to the mill's second waterwheel to drive a surface water pump and haul trucks from a neighbouring gypsum mine.

BBC: Cumbria's Acorn Bank Mill grinds first flour for 70 years