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- Heavy metals, such as iron and lead, make good gamma-ray shields because of their high density .
重金属像铁、铅等由于密度很大,都是防护射线的最好的防护材料。 - The modes of interaction of neutrons with matter are quite different from those experienced by gamma-ray photons .
中子与物质的相互作用方式和射线光子完全不同。 - The films are developed and the degree of fogging observed is a measure of the gamma-ray exposure .
经显影之后,可以根据观察到的模糊发黑程度来确定r射线的照射程度。 - The verification regulation of gamma - ray calibrator
自然伽玛刻度器检定规程 - Test procedures for germanium gamma - ray detectors
锗射线探测器的试验程序 - Germanium gamma - ray detectors , test procedures for
锗射线探测器试验程序 - Continuous type environmental gamma - ray monitors
连续式环境射线监视器 - The verification regulation of gamma - ray tool
自然伽玛测井仪检定规程 - Industrial gamma - ray apparatus for radiography
工业用射线照相装置 - Test method for high - resolution gamma - ray spectrometry of water
水的高分辨率射线能谱测定方法
Last modified time:Tue, 12 Aug 2025 00:29:56 GMT