envelope for dental X-ray film的意思|示意

牙科X射线胶片套 ...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 ..

牙科X ... 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 ...