“gravimetric method for gas mixture preparation”的概念、定义、翻译、参考文献-科学参考

单词	gravimetric method for gas mixture preparation
释义	gravimetric method for gas mixture preparation Encyclopedia 工学化学成分量计量释 gravimetric method for gas mixture preparation混合气体重量制备法用于混合气体标准物质（又称标准混合气体等）的制备和定值。又称混合气体称量制备法。
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