... 打气筒栓 pumpeg 脚踏打气筒 foot-operated air pump 轮胎打气筒 tyre hand air pump ...
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脚踏打气器
foot-operated air pump detail 脚踏打气筒
foot-operated air pump
脚踏式气泵
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The air-jet exhauster is a compressed air-operated device for pump priming, provided that the pump has no foot valve. Water is induced into the pump by vacuum created by the exhauster.
以压缩空气为动力的气体引射器，它是用在无底阀水泵上的抽气引水设备，具有结构简单、加工制做容易、耗气量小、效率高等特点。
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