fire pump engine 消防泵发动机
engine driven pump 内燃机驱动泵 ; 机动泵 ; 发动机驱动泵 ; 热机驱动泵
Pump Engine power 泵送发动机功率
Portable fire pump with engine [安全] 手抬机动消防泵
donkey engine feed pump 辅助发动机添水泵
beam engine pump 横梁发动机泵
balance beam engine pump 发动机平衡杆泵
fire engine pump 车载消防泵
The traditional method to adjust the valve opening and to turn on or turn off the pump engine by people to meet the need of water supply was improved.
提出了变频自动控制在节水灌溉中的应用方案,改变了传统的调整阀门开度及人工启停电机来满足供水需要的操作方法。
The gate valve usually is at the off-position, the water pump starts when the gate valve opens slowly, when water pump engine off, the gate valve shuts down slowly first.
闸阀平时是处于关闭状态,水泵启动时闸阀慢慢打开,水泵停机时,闸阀先慢慢关闭。
He thereby transformed an inefficient pump of limited use into a steam engine of a thousand uses.
因此,他将应用范围有限且效率低的蒸汽泵改造成了应用范围广泛的蒸汽发动机。
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