“primary standard of exposure”的概念、定义、翻译、参考文献-科学参考

单词	primary standard of exposure
释义	primary standard of exposure Encyclopedia 工学照射量基准释 primary standard of exposure照射量基准复现X射线（5～300千伏）和γ射线（137Cs, 60Co）照射量量值，用于标准和工作级计量器具的量值传递。
随便看	Wal-gold model Walid Ikhlasi Wa literature walk walkability walk behind roller walk-down Walker Walker circulation Walker Evans walking aids Walking and jogging walking beam and hearth furnace walking city walking excavator walking fern Walking out of the East Gate walking pedagogy walking pile frame walking sprinkler walking training Walkinshaw frequency equation walk of a graph walk-off angle walk off effect

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