We see three bonding pairs so this is a triple bond, indeed a multiple bond.
我们看到3对成键电子所以这是一个三重键，它确实是多重键。
In view of these great role, organic synthesis workers have done a lot of work on the field of Carbon-Carbon multiple-bond compounds. All kinds of synthetic methods continuously appear.
鉴于重键化合物的重大作用，有机合成工作者对此类化合物的合成已做了大量的工作，各种合成方法不断涌现出来。
In view of these great role, organic synthesis workers have done a lot of work on the field of Carbon-Carbon multiple-bond compounds. All kinds of synthetic methods continuously appear.
鉴于重键化合物的重大作用，有机合成工作者对此类化合物的合成已做了大量的工作，各种合成方法不断涌现出来。
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