短語(yǔ)詞組短語(yǔ)bunker r gate 貯倉(cāng)閘門(mén)gate road bunker 采區(qū)運(yùn)輸順槽煤倉(cāng);[礦業(yè)]井下采區(qū)煤倉(cāng) 返回 bunker gate