常見例句

雙語例句

PCB (polychlorinated biphenyl):Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound.
多氯聯苯：任何一種由氯與聯苯反應生成的非常穩(wěn)定的二環(huán)有機化合物。
Chemists have always been looking for a simple and effective method which is able to directly couple two aromatic derivatives to synthesize such biphenyl compounds.
有機化學工作者們在近一個世紀以來，一直希望找到一種通過簡單芳烴類衍生物直接偶聯，簡單有效地生成聯苯類化合物的合成方法。
As biphenyl compounds are presented in a large number of biologically active natural products, synthesis of biphenyl compounds has attracted more and more attention.
聯苯類化合物廣泛存在于許多具有生理活性的天然產物中，它們的合成受到人們越來越多的關注。