polymer
柯林斯词典
1. N-COUNT A polymer is a chemical compound with large molecules made of many smaller molecules of the same kind. Some polymers exist naturally and others are produced in laboratories and factories. 聚郃物
返回 polymer
1. N-COUNT A polymer is a chemical compound with large molecules made of many smaller molecules of the same kind. Some polymers exist naturally and others are produced in laboratories and factories. 聚郃物