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1·Pure water is neutral with a pH of 7.

纯净水是中性的，PH值为7。《柯林斯英汉双解大词典》

2·The bottle is sealed, and the label says pure water.

这个瓶子是密封的，标签上写着“纯净水”。

3·The equipment doesn't necessarily operate in pure water.

该设备不一定要在纯净水中使用。

4·Hydroponics is not planting them in pure water, in water that has the proper mix of nutrients.

水培法不是把它们种植在纯净水里，而是在适当混合了营养素的水中。

5·More than 900 metres high, on the mountain's north face, lies an all-important source of pure water.

在这座山的北面，海拔900米以上的位置有一个非常重要的纯净水水源地。

6·Backruns can be induced by adding pure water or concentrated paint.

加入纯净水或浓缩涂料可引起逆转。

7·Eg: Pure water is transparent.

例：纯净的水是透明的。

8·Then how do you get pure water, sir?

那么要怎么才能获得纯净的水呢，先生？

9·Where a star, the star, means pure water.

这里的星号表示纯水。

10·And on one side I've just got pure water.

在一边我有纯水。