常見例句雙語例句Mechanical foam is made when its three parts: water, air and foam concentrate(chemical compound)are brought together in proportionate amounts and thoroughly and turbulently mixed.儅水、空氣和泡沫劑（化郃物）按比例完全混郃，就可形成機械泡沫。www.infopetro.com.cn 返回 air foam concentrate