碳的的用法和樣例:
例句
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放射性碳碳的一種放射性同位素,尤指碳14
A radioactive isotope of carbon, especially carbon14. -
碳化作用煙煤的分解蒸餾,在沒(méi)有空氣的條件下進(jìn)行,為得到比最初的原料所含碳的百分比大得多的焦煤以及其它餾分
The destructive distillation of bituminous coal, done in the absence of air in order to obtain coke and other fractions having a greater percentage of carbon than the original material. -
碳的化合價(jià)是四價(jià)。
Carbon has a valence of four.