“permissible concentration-time weighted average”的概念、定义、翻译、参考文献-科学参考

单词	permissible concentration-time weighted average
释义	permissible concentration-time weighted average Encyclopedia 工学时间加权平均浓度释 permissible concentration-time weighted average时间加权平均容许浓度一个工作日8小时或一个工作周40小时中以接触有害物质的时间为权数计算所得的平均浓度。
随便看	language landscape language league Language Learning language learning language legislation language life language localization language loyalty language maintenance language maintence language market language model language nationalism language needs language normalization Language of Art: An Approach To A Theory of Symbol language of equations language of formulas language ontology language planning Language Planning in China Series Language Planning Studies language policy language policy of Canada language politics

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