短語(yǔ)詞組短語(yǔ)dust -explosion-proof 粉塵防爆prevent the dust from explosion 防爆sulphide dust explosion 硫化物塵末爆炸dust explosion hazardous area 粉塵爆炸危險(xiǎn)場(chǎng)所dust explosion characteristic 粉塵爆炸特性dust explosion aeeidant 粉塵爆炸事故grain dust explosion 糧食粉塵爆炸coal -dust explosion 煤塵爆炸sulphide -dust explosion 硫化物粉末爆炸 返回 dust explosion