pump delivery head泵: pump的: 4次方是 The fourth power of 2 i ...输出: export水位: stage; water level泵的输出水头: pump delivery head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:泵的输出水位，即可在微信中查询翻译
