“烯烃”造句
某碳氢化合物已知可能是
烯烃或是烷烃.
A hydrocarbon was known to be either an alkene or alkane.
在较高的
烯烃情况下, 高能的中间物稳定作用更易出现.
With the higher olefins, stabilization of the energetic intermediates occurs more easily.
有时它们就难于和芳香族或
烯烃的吸收峰相互区别.
They are sometimes difficult to differentiate from aromatic or olefinic absorptions.