英语语法分析

The terpolymers of the invention: (a) a vinyl lactam, such as vinyl pyrrolidone or vinyl caprolactam;

发明的三元：（一）一乙烯基酰胺，如聚乙烯吡咯烷酮或乙烯基己内酰胺；

The results indicated that b-lactam antibiotics could be identified in glass vials without sample pretreatment.

结果表明，该法无需对样本进行预处理，直接扫描玻璃瓶内样品，即可准确鉴别。

The invention is suitable for enterprises which take lactam as a raw material to produce high-strength nylon 6.

本发明方法适用于以己内酰胺为原料生产高强度尼龙6轮胎帘子线和工程塑料的企业。