perforated drain pipe

岩土专业英汉词汇岩土专... ... percussion drilling 击钻探 perforated drain pipe 多孔排水管 perforated stone 透水石;穿孔石 ...

穿孔管... ... ) perforation system 穿孔系统 ) perforated drain pipe 穿孔排水管 ) water drain 放[排，泄]水，排水[管，孔，系统] ...