benzene ring造句

1、The benzene ring is also seen in other compounds.
苯环在其他化合物中也可以看见。

2、The benzene ring is also seen in other compounds.
苯环在其他化合物中也可以看见。

3、The synthesis methods of chalcone and benzene ring alkylation are discussed.
探讨了苯环上烃基化的条件以及查尔酮合成方法和条件。