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空气比释动能基准
释义
空气比释动能基准
Encyclopedia
工学
空气比释动能基准
释
primary standard of air kerma
空气比释动能基准
定义、实现、保存空气比释动能的计量装置。主要用于放射诊断、放射治疗、工业等领域的量值传递。
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Ancient Towpath
ancient tree group in Eryuan County
ancient trees in Beijing center
Ancient Trees in Mount Tianmu
ancient trees in the Ming Tombs, Changping
ancient trees in the Tanzhe Temple
ancient trees in the Temple of Heaven Park
ancient trees in Xiangshan Park
Ancient Villages in Southern Anhui–Xidi and Hongcun World Culture Heritage
ancient water conservancy projects in the Mesopotamia
ancient water conservancy projects in the Nile valley
Ancient Water Distribution Project
ancient water-lifting machines
ancient welding technology
Ancient Well Irrigation Project
ancient west asia architecture
ancient winch
ancient windmill
ancillary
ancillary and subordinate officials in prefectures and counties
ancillary facilitie
ancillary information
ancillary statistic
Anci Qu
Anconɑ
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