于是他反向推算了一下扫描仪生成符合机场安检要求的图像所需的X射线剂量。
He calculated backward to figure out how big an X-ray dose would be needed to get the kind of images the machines produce.
装置对漏射线的屏蔽符合国家相应标准的要求。
Theperformance screening inutile ray fills the requirement of corresponding nation criteria.
围绕K值展开讨论，提出一种符合现行标准、规程要求的标准椭圆封头拼接焊缝的射线探伤工艺。
By a discussion on K value, the radiographic technology for the butt welds in standard elliptic sealing heads consistent with current standards and regulations is presented.
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