pulsating motorreciprocating motor往复运动: advance and return movement; ...的: 4次方是 The fourth power of 2 i ...电动机: electric motor; motor往复运动电动机: motor with reciprocating movement; pulsating motor液压式往复运动机: hydro reciprocator下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:往复运动的电动机，即可在微信中查询翻译
