envelope for dental X-ray film
...ray absorption fine structure(EXAS) 释义：扩展的X射线吸收精细结构 envelope for dental X-ray film 释义：牙科X射线胶片套 fluorescence X-ray counting 释义：荧光X射线计数 ..
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... envelope 封皮，外壳，套 envelope for dental X-ray film 牙科X射线胶片套 environment ①环境，外界 ②包围，围绕 ...
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