常見(jiàn)例句雙語(yǔ)例句The method of system transformation, combining sealing are consequently used, and the problem of small mine air leak is solved.採(cǎi)取系統(tǒng)改造，結(jié)郃堵漏的方法，解決了小井漏風(fēng)問(wèn)題。 返回 small air leak