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碳的化合价是4价。
Carbon has a valency of 4.
《牛津词典》
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为何碳的价格始终没有更大降幅？
Why hasn't the carbon price fallen further?
youdao
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人们不得不习惯选择低碳的方式。
People have got to get used to making low carbon choices.
youdao
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因此最终我们得到碳的形式电荷量是负一。
So we end up with a formal charge on carbon of negative 1.
youdao
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这是碳的数量,这是一摩尔的碳。
This is the number of carbons there is in a mole of carbon.
youdao
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“如果不能减少碳的排放，就是失职，”他说。
"If you're not reducing carbon, you're not doing your job," he said.
youdao
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“如果不能减少碳的排放，就是失职，”他说。
“If you're not reducing carbon, you're not doing your job,” he said.
youdao
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碳的循环在学校教科书中已经讲过了。
The carbon cycle is the stuff of school books.
youdao
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所以现在我们提倡过低碳的生活。
So nowadays we advocate to lead a low-carbon life.
youdao
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低碳的概念是低能量，不浪费。
The concepts of low carbon are low energy and no waste.
youdao
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碳的价格为此可能会有很大的提高。
The carbon price is likely to rise sharply as a result.
youdao
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透过鱼缸的世界，畅游低碳的生活。
The world through the aquarium, swimming low-carbon life.
youdao
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所以此刻我们提倡过低碳的生活。
So nowadays we advocate to lead a low-carbon life.
youdao
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对富勒碳的高温性质进行了研究。
The high temperature behavior of fullerenes was studied in this paper.
youdao
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红树林的的根系可以起到隔绝碳的作用。
The mangrove forest also sequesters carbon dioxide in its root system.
youdao
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碳的这两个基本形式的性质大不相同。
The two elementary forms of carbon have very different properties.
youdao
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让我们生活在低碳的世界里。
Let us live in a world of low carbon.
youdao
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特别地，这适用于碳的含量。
In particular, this applies for the content of carbon.
youdao
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无可否认，我们应该过一种低碳的生活。
There is no denying that we should lead a low-carbon life.
youdao
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生产活性碳的原料来源受到一定的限制。
The material source of active carbon production is limited.
youdao
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第二点是，我们将生活在限制碳的世界中。
The second prediction is that we will live in a carbon-constrained world.
youdao
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对土壤总有机碳的影响。
Effect on total organic carbon of soil.
youdao
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它们是碳的结晶，由于高压，大热的形式。
They are a form of carbon which crystallized due to high pressure and great heat.
youdao
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分子中有六个碳的糖。
Hexose a sugar that has six carbon atoms in its molecules.
youdao
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碳的化合价是四价。
Carbon has a valence of four.
youdao
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没有不含碳的钢。
There is no steel not containing carbon.
youdao
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尽管这十分奇怪，因为这样是一种对有用的碳的浪费。
That would be odd, though, since it would be a waste of valuable carbon.
youdao
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尽管这十分奇怪，因为这样是一种对有用的碳的浪费。
That would be odd, though, since it would be a waste of valuable carbon.
youdao