美国烟叶分级标准体系中类,型和组的划分

Classification of Leaf Tobacco Covering Classes, Types and Groups of Grades in U.S. Official Grade Standards for Tobacco

摘要: 简要介绍了美国条法的编纂发布规则以及烟叶分级标准在其编排体系中的位置和编码方式；论述了美国烟叶分级标准中类、型、组的概念以及分类、分型、分组的依据、原则和特点；阐明了美国烟叶分级标准与各类、型的对应关系，并对分类和分型在我国烟叶分级标准制订工作中的意义作了讨论。

Abstract: The rule of the editorial compilation and publication of U.S. regulations was introduced briefly, while the arrangement and codification manners of the Official Grade Standards for Tobacco was elucidated in the editorial compilation of the Federal regulations. The concepts of the classes, types and groups of grades in U.S. Official Grade Standards for Tobacco were reviewed in detail, as well as the foundation, rule and feature. The relationship of the classes and types corresponding to U.S. Official Tobacco Grade Standards was illustrated. Significance of the classification and typification in China Grade Standards for Tobacco was discussed.