mine static head矿井通风: mine ventilation静压: static pressure头: 5点就得动身 have to start before ...矿井通风兑压头: mine total head矿井通风速度压头: mine velocity 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:矿井通风静压头，即可在微信中查询翻译
