短語詞組短語explosive e gas indicator 爆炸性氣體指示器explosive dust gas 爆炸氣explosive dust gas detector 爆炸氣體檢測器polynary explosive mixed gas 多元爆炸性混合氣體non -explosive tear gas candle 非爆炸性催淚燭炬explosive gas environment classification 爆炸危險區(qū)域劃分polynary mixed explosive gas 多元爆炸性混合氣體environment of explosive gas 爆炸性氣體環(huán)境explosive gas pressure 爆炸氣體壓力 返回 explosive gas