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水的等级
1、polarization grade───极化度
2、grade five───五年级
3、grade inflation───分数膨胀；夸大分值；分数贬值，分数通胀〔指考试分数逐年提升、但学业水平并非如此的现象〕；成绩膨胀
4、parfdedicoff grade───帕夫迪奇越野车
5、grade───n.年级；等级；成绩；级别；阶段；vi.分等级；逐渐变化；n.(Grade)人名；(英)格雷德；(法、德、西、葡、塞、瑞典)格拉德；vt.评分；把…分等级
6、grade C───C级
7、filaments grade───长丝等级
8、get grade───获得分数
9、feed grade───饲料级
1、If you choose to prepare your own containers of water, you should buy air-tight, food-grade water storage containers from surplus or camping supply stores.───如果你准备用自己的容器装水，你应该从JunYongPin或者野营用品专门店购买那种不漏气的、专门储存食品的盛水容器。
2、The reserve tanks at a reactor contain the same grade of water in terms of purity and chemical composition that are normally used in the core.───反应堆的储备箱里储备了与反应堆内同等纯度和化学构成的水。
3、IV-grade indicates the water is only suitable for industrial use and other amusement purposes that do not involve the liquid coming into contact with skin.───IV地表水主要适用于工业用水及人体非直接接触的娱乐用水区。