青年中文IUPAC的意思
IUPAC中文翻譯：
abbr.國際理論和應用化學聯合會（InternationalUnionofPureandAppliedChemistry）
toluene iupac───甲苯iupac；
It differs from demasking on one hand and from the masking action defined by IUPAC on the other.───它一方面不同于掩蔽，另一方面又不同于 IUPAC 定義的掩蔽作用。
Multiply unsaturated compounds are usually best named by the IUPAC nomenclature.───多重不飽和化合物一般最好用IUPAC命名法來命名。
Ketones are named by the iupac system as derivatives of the class name for this homologous series "alkanones. ""───系統中，酮是作為這個系列的類名——“烷屬酮”的衍生物來命名的。
Ketones are named by the IUPAC system as derivatives of the class name for this homologous series, "alkanones. "───在IUPAC系統中，酮是作為這個系列的類名——“烷屬酮”的衍生物來命名的。
Unbranched hydrocarbons having one double bond are named in the IUPAC system by replacing the ending -ane of the alkane name with -ene.───在系統命名法中，直鏈的、有一個雙鍵的烴可通過將其相應烷烴名字的詞尾–ane改換為-ene而得。
It was only in 1997 that the International Union of Pure and Applied Chemistry, or IUPAC, proposed names for 104 - 109.───在1997年國際理論與應用化學聯合會（簡稱IUPAC）就對外征集104——109號元素的名字。
In order to maintain the diversity of population, the algorithm uses the IUPAC degenerate code for mutation.───在算法變異操作中加入IUPAC簡并碼保持種群的多樣性。
In the IUPAC system, alkyl and aryl substituents and many functional groups are named AS prefixes on the parent (for example, iodomethane).───在系統命名法中，烷基、芳基取代基和許多官能團被命名為前綴并放在一個母體的前面（例如：碘甲烷）