water quality 水質(zhì)water purifying 凈水water purifier n. 凈水器water purification system 水凈化器；水凈化系統(tǒng)；純水系統(tǒng)water purification plant 凈水廠water purification 水的凈化water puppetry water pumps [機(jī)] 水泵；抽水機(jī)water pump seal cup [經(jīng)濟(jì)學(xué)]水泵水封皮碗water pump idle gear [經(jīng)濟(jì)學(xué)]水泵惰齒輪water pump housing [經(jīng)濟(jì)學(xué)]水泵殼water pump 抽水機(jī)，水泵water protecting curtain [物理學(xué)]防水帷幕water proofness 水密性water proofer water proof torch light [交通運(yùn)輸工程]防水手電筒water proof glue [交通運(yùn)輸工程]防水膠water proof electric torch [交通運(yùn)輸工程]防水手電筒water proof 防水的；不透水的water project