农业科技期刊在贯彻执行《量和单位》国家标准中遇到的问题不少，有许多习惯用法显然不够规范或与国标不符。一、含量与浓度概念不清含量是用于定性描述混合物组成的一个大概念，它没有物理量的确切定义。含量一词泛指混合物中各组分之间的量的关系。根据组分的质量、体积... There are quite a few problems encountered in the implementation of agricultural science and technology journals in national standards of “quantity and unit”, and many of the idioms used are obviously not normative or inconsistent with the national standard. First, the content and concentration of the concept of unclear content is used to qualitatively describe the composition of a large concept, it does not have the exact definition of physical quantities. The term content generally refers to the amount of each component in a mixture. According to the quality of components, volume ...