waterpipe
常見(jiàn)例句
- After analyzing the characteristics and application situation of the polyvinyl chlride waterpipe,the variation of the waterquality in the plastic water pipeis studied.
分析了我國(guó)塑料給水管的特點(diǎn)及應(yīng)用現(xiàn)狀，對(duì)聚氯乙烯塑料給水管中化學(xué)成分對(duì)水質(zhì)的影響進(jìn)行了研究。 返回 waterpipe