... 基准标准 base standard 基准标准气 master standard gas 国际标准品 international standard substanc ...
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According to this industrial situation, a computer control calibration system with gas flow standard device by the master meter method is researched and designed.
本文针对这样的工业现状，研制了一种标准表法气体流量标准装置计算机测控系统。
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