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1·It appears that unlike salt, dissolved organic substances are not excluded from the ice in the freezing process.

和食盐不同，溶解的有机物在结冰过程中似乎并没有被排除在冰层之外。

2·The slush is compacted by an unknown mechanism, and solid, bubble-free ice is formed from water high in soluble organic substances.

半融雪通过一种未知的物理过程被压实，而固态、无气泡的冰是由富含可溶性有机物的水形成的。

3·The materials can be metals, alloys, or organic substances.

材料可以包括金属，合金或有机物质等。

4·Resins: Viscous, sticky organic substances exuded from trees.

树脂：从树中渗出的粘性流动有机物质。

5·Organic substances are always subject to slow attack by oxygen.

有机物暴露在空气中都易受氧的侵袭。

6·The waste water in liquor production contained more than 100 kinds of organic substances.

白酒生产产生的废水中含有100多种有机物，直接排放会影响环境。

7·Coal and petroleum are called organic substances, because they are the remains of living things.

煤炭和石油被称为有机物质，因为它们的生物。

8·Biochemical oxygen demand - BOD: a measure of the amount of pollution by organic substances in water.

生化物需氧量(简写为BOD)：一种衡量有机物在水中的污染量的标准。

9·Being made of organic substances, primitive boats were subject to corruption and they did not preserve.

原始的舟船都是用有机物制成的，易腐难存。

10·The results show that the aerobic digestion may reduce the content of organic substances and the sludge odor.

试验结果表明，污泥好氧处理使污泥中有机物质含量降低，臭味减小。