We know nitrogen bondsmultiplebonds, so let's look at nitrogen.
我们了解氮气中有多重键，我们看看氮气。
2
This paper briefly summarized the new progress of theoretical studies on synthesize and characterize the compounds with multiplebonds between heavier main group elements, especially heavy cumulenes.
简要综述了重主族多重键，尤其是重主族累积多烯化合物的合成及结构表征和理论研究方面的最新进展。
3
The combustion of larger molecules, which have multiple carbon-carbon bonds, involves a more complex series of reactions.