Codes） 、化学代码（ Chemical Codes）化合物登记号（ Compound Numbers） 、环系索 引代码 (Ring Index Numbers)等，便于对化学领域专利的精确检索
双语例句
1
Today we have learnt how to change between decimal fractions and compoundnumbers.
今天我们学习了小数与复名数的相互转换。
2
Scanning for compound documents, incrementing the revision number, and applying unique document Numbers all increase response times and affect scalability.
扫描复合文档、递增修订号和应用惟一的文档号都会增加响应时间和影响可伸缩性。
3
As their Numbers grow with warmer temperatures, concentrations of the toxic mercury compound may increase, Drevnick says.