Noun:

1. a resin having a polymeric structure; especially a resin in the raw state; used chiefly in plastics

synthetic gem合成宝石,人造宝石syntheticadj.合成的；人造的；综合的；虚伪的n.合成物；人工制品synthetic-rubber sports track塑胶跑道synthetic-speech sound system合成语声系统synthetic mechanical properties综合机械性能synthetic aperture magnetometry合成孔径磁场测定法synthetical earthquake forecast地震综合预报Synthetic cork for wine bottles用于葡萄酒瓶的新式合成瓶塞synthetic agent theory of crime犯罪综合动因论synthetic discriminant function综合判别函数Synthetic Vitamin A Concentrate浓缩合成维生素ASynthetical rehabilitation cure经络导平

1. They are made of a common plastic resin.
   它们是用一种普通的塑胶合成树脂做成的。
2. The abradability of resin is better.
   磨削性能证明合成树脂性能良好。