olefin content的用法和样例：
例句
- The content of the conjugate dienes can be expressed with the diene number.
共轭二烯烃含量的多少可以用二烯值来表示。 - The hydrogen transfer activities of several modified materials were investigated and co related with the heavy oil catalytic cracking ability and olefin content in cracked naphtha.
考察了多种改性材料的氢转移反应活性及对催化裂化催化剂的重油转化活性及汽油中烯烃含量的影响规律。
