短語詞組短語downhole plugging material 井底堵塞材料grouting and plugging material 注漿堵漏材料colloid composite plugging material 膠質(zhì)復(fù)合堵漏材料fireproof plugging material 防火封堵材料Inorganic waterproof plugging material 無機(jī)防水堵漏材料aggregate of plugging material 封堵骨料plugging material evaluation system 堵漏材料評價系統(tǒng)blast -holes-plugging material 炮孔堵塞材料 返回 plugging material