糖类化学合成碳、氧、氢、通常与氢气和氧气的比例组成的水权。
Carbohydrate - Chemical compound of carbon, oxygen and hydrogen, usually with the hydrogen and oxygen in the right proportions to form water.
现在80%以上的日本的钢铁由氧气炉生产，这在世界上是比例最高的。
More than 80% of Japan's steel is now made in oxygen furnaces, the highest proportion in the world.
譬如，一部分皮肤可能被拉出形成腮或者被推进去形成肺，这样吸收氧气的表面积便以该动物的体积成比例地增加了。
For example, a part of the skin may be drawn out into tufts to make gills or pushed in to make lungs, thus increasing the oxygen-absorbing surface in proportion to th animal's bulk.
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