内部销售层次结构，将产品按不同的级别分类，例如分公司、部门、类别、品牌等等。

An internal merchandising hierarchy that groups products in different levels, such as division, department, category, brand, and so on.

youdao

意于为病人治疗、诊断、预防疾病的按药理学的作用和分类作为一种医疗产品的任何气体或混合气体。

Any gas or mixture of gases intended to be administered to patients for therapeutic diagnostic or prophylactic purposes using pharmacological action and classified as a medicinal product.

youdao

意于为病人治疗、诊断、预防疾病的按药理学的作用和分类作为一种医疗产品的任何气体或混合气体。

Any gas or mixture of gases intended to be administered to patients for therapeutic, diagnostic or prophylactic purposes using pharmacological action and classified as a medicinal product.

youdao