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什么是HSN code？ - 知乎 The Harmonized Commodity Description and Coding System generally refers to “Harmonized System of Nomenclature” or simply “ HSN ” It is a multipurpose international product nomenclature developed by the World Customs Organization (WCO)
什么是欧洲医疗器械命名系统EMDN？ - 知乎 GMDN：全球医疗器械命名法（Global Medical Device Nomenclature，简称GMDN）是用于识别所有医疗器械产品的通用名称的目录。 GMDN代码根据ISO 15225编制，被广泛应用于国际医疗器械监管领域。
苯的衍生物命名规则中，烷基和卤素应该哪个优先？ - 知乎 具体内容大家可以自行下载阅览～ 然后英文的其实也陆续在改～（貌似只有3个大的版本1979、1993、2013） [3] NOTE: The most recent version of Nomenclature of Organic Chemistry IUPAC Recommendations and Preferred Name 2013 (Blue Book) was published in December 2013 These rules supercede 1979 and 1993
基因测序，门水平结果写的Bacteroidota是拟杆菌门吗？ - 知乎 Addendum to 'Proposal to include the rank of phylum in the International Code of Nomenclature of Prokaryotes' Int J Syst Evol Microbiol 2018; 68:967-969 未有效发表的原因有很多，不过大概率是没有满足ICSP对分类命名的规定 严格意义上讲Bacteroidota不是一个正确的写法 (如果严格按照ICSP的要求的话)
石油醚 - 知乎 沸点高于 100 摄氏度、但低于 140 摄氏度的汽油产品在美国也被称为石油醚，但在英国被称为石油英（petroleum spirit）。 关于轻质石油不同成分的命名和其它信息可以参考文章 Generic Hydrocarbon Solvents: a Guide to Nomenclature ( )。
有没有“氮烯” (HN=NH)这种物质？ - 知乎 The compound N2H2 has been called many things over the years, including diimide, diimine, dimid, diamin, diazen and diazene The name diazene has been promoted in recent years in an attempt to systematize the nomenclature of the nitrogen hydrides, and has been adopted by Chemical Abstracts
IUPAC命名法 - 知乎 IUPAC命名法（英文），随缘更新写在前面 本文是对于IUPAC上Basic Guidelines to the Nomenclature of Organic and Inorganic Chemistry项目中无机