A.密閉 B.通風(fēng)良好 C.不得接觸高溫、明火、強(qiáng)酸等 D.干燥 E.加壓
A.能產(chǎn)生大量蒸汽 B.能產(chǎn)生大量粉塵 C.預(yù)應(yīng)力鋼筋施工 D.能產(chǎn)生大量氣體 E.箱梁預(yù)制場(chǎng)