短语词组短语FLAMEPROOF FABRIC 防水布flameproof enclosure 防火罩;防火外壳flameproof glass 防火玻璃flameproof fiber 防燃纤维flameproof motor 全防爆型电动机flameproof unit 防爆单元Flameproof Class 隔爆等级flameproof packaging 防燃包装;楼flameproof gap 防火间隙 返回 flameproof