回复 10# 的帖子
差不多了，不过。。。
electrical-production, a new technology, which contains different kinds of dictionaries and other books这还是个名词， a new technology,是electrical-production的同位语 which contains different kinds of dictionaries and other books是electrical-production的定语 ，还是不能单独出现，
直接改为However,electrical-production, a new technology, which contains different kinds of dictionaries and other books, is no more than 200 grams.就行了，这样前面的那个大名词是主语，is 是谓语，no more than 200 grams 是宾语
