常見例句雙語(yǔ)例句This article only discusses the plan of reforming the medium-sized fertilizer plant TEXACO coal gasification process in stead of fixed bed gasifier.本文僅對(duì)以煤為原料的中型化肥廠，采用德士古氣化工藝改造方案進(jìn)行探討。 返回 bed stead