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ZH基本单位Noun
ZH
基本单位为中国大陆统计常用术语，于2004年开始的第一次全国经济普查对其进行了规范，基本单位包括法人单位、产业活动单位和个体经营户。
bn:07619384n Concept
ZH
在代数数论，基本单位，是数域中代数整数环的生成元（即模单位根），可理解为单位群模其扭子群是个无限循环群。
bn:07627745n Concept
ZH
量纲（base unit，fundamental unit）又称因次，是表示一个物理量由基本量（base quantity）组成的情况。
量纲基本量
bn:00036846n Concept
From automatic translation
English:
measurement

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