W 开头单词

water quality 水质

water purifying 净水

water purifier n. 净水器

water purification system 水净化器；水净化系统；纯水系统

water purification plant 净水厂

water purification 水的净化

water puppetry

water pumps [机] 水泵；抽水机

water pump seal cup [经济学]水泵水封皮碗

water pump idle gear [经济学]水泵惰齿轮

water pump housing [经济学]水泵壳

water pump 抽水机，水泵

water protecting curtain [物理学]防水帷幕

water proofness 水密性

water proofer

water proof torch light [交通运输工程]防水手电筒

water proof glue [交通运输工程]防水胶

water proof electric torch [交通运输工程]防水手电筒

water proof 防水的；不透水的

water project