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POPULAR SCIENCE
1. there were three groups of oils; animal, vegetable and mineral.
油可以分为三大类:动物油,植物油,矿物油.
2. a few other creatures yield oil, but non so much as whale.
有些动物也出油,但都没有鲸鱼出得多.
3. Vegetable oil has been known from antiquity.
植物油从古以来就为人们所熟悉.
4. To it we owe the existence of the motor-car, which has replaced the private carriage drawn by the horse, to it we owe the possibility of flying.
就是因为有了这种油,我们才能用上汽车,以代替马车.就是因为有了这种油,我们才有可能飞行.
5. two metal surfaces rubbing together cause friction and heat; but if they are separated by a thing film of oil, the friction and heat are reduced. No machine would work for long if it were not properly lubricated.
两个金属面相擦,就要产生摩擦和热;但如果在它们之间抹上薄薄的一层油,就可以减少磨擦,降低热度.
6. the statement that oil originated in the sea is confirmed by a glance at a map showing that chief oilfields of the world; very few of them are far distant from the oceans of today.
石油原于大海的这种观点是被人们所认可的,你要看一眼世界主要油井的分布图就一目了然了, 几乎没有远离现在海洋的油井.
7. the rocks in which oil is found are of marine origin too.
石油存在处的岩石也都有海洋的渊源.
8. A very common sedimentary rock is called shale, which is a soft rock and was obviously formed by being deposited on the sea bed. And where there is shale there is likely to be oil.
一块极普通的沉积岩叫页岩,这种页岩质地松软,很明显是通过海底沉积作用形成的. 有页岩的地方,极有可能有石油.
9. the drill may just miss the oil although it is near; on the other hand, it may strike oil at a fairly high level.
有时石油虽就在附近,但因为没钻准地儿,结果还是一无所获.有时呢,就这么一钻,石油就喷出好高好高.
10. when the crude oil is obtained from the field, it is taken to the refineries. Gas that comes off the oil later is condensed.
从油田获得的原油要被送到炼油厂进行处理.接下来再将获得的汽体浓缩后成为煤油.
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