reciprocating diaphragm pump往复式: ping-pong隔膜: lack of mutual understanding ...泵: pump复式隔膜泵: dual diaphragm pump往复隔膜泵: pump reciprocating diaphram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:往复式隔膜泵,即可在微信中查询翻译