water quality
Many people were dependent for their water supply on this pestilential stream.
许多人靠这条水质受污、可致疫病的河流来取水。
—— 辞典例句They set up purifying systems in places where the water was not potable.
他们在许多水质不适合饮用的地方建立了净化系统。
—— 辞典例句The waters are crystal clear and offer a superb opportunity for swimming.
这片水域水质清澈,是游泳的绝佳场所。
—— 辞典例句Quality standards selected depend on intended use of the water.
水质标准的选择取决于水的预定用途。
—— 辞典例句Quality objectives must be set, and quality of water must be maintained.
所以,必须建立水质标准, 并坚持水质要求。
—— 辞典例句