1·So really, you can not ever rotate a double bond, it makes your molecule very rigid.
实际上，你不能转动一个双键，它使得你的分子很坚固。
2·"One - pot" carbon - carbon double bond formation.
“一锅”法的碳-碳双键形成反应。
3·The Alkene Double Bond: a Focus of Reactivity.
烯烃的双键：重点是反应活性。
4·Monounsaturated fatty acid (MUFA) is a sort of fatty acids, including a double bond in its carbon chain.
单不饱和脂肪酸(MU FA)是脂肪酸的一种，其碳链上只有一个双键。
5·And there should a certain amount of double bond of carbon in the multifunctional monomers so as to suppress the degradation of PP.
若多功能单体分子中含有一定含量的碳—碳双键，则能很好地抑制降解。