单词：naphthene
Caucasian petroleum.
naphthene的用法和样例：
词汇搭配
- five-carbon ring naphthene五碳环烷
- alkylated naphthene烷化环烷
- five carbon ring naphthene五碳环烷
- cellulose naphthene laurate环烷酸-十二酸纤维素...
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