The relative and absolute error equations of closures are deduced, which can be the reference of tracing ray quantities for solving the radiation transfer coefficient.
推导封闭腔内辐射传递系数的相对和绝对误差公式，为求解辐射传递系数所需追踪射线数量提供参考依据。
Vertebral morphometry by X-ray absorptiometry: Which reference data for vertebral heights?
线骨密度仪测定的椎体形态学：椎体高度的参考数据？
Conclusion: X-ray images can provide objective and reference evidence for treating Knee Osteoarthropathy by manipulations.
结论：X线影像可为膝骨关节病的手法治疗提供选择方法的客观参考依据。
Rigaku 3080e3 X-ray spectrometer was applied to the determination of major and trace mineral elements in muskmelon, calibration was made by using national plant standard reference materials.
报道了日本理学3080e3型x -射线荧光光谱仪在测定甜瓜样品常量和微量矿质元素中的应用。
Methods: X ray magnifying power of alveolar was estimated by measuring the power of a reference.
方法：摄x线检查时，通过测量参照物的X线放大率来估计牙槽骨的X线放大率。
X-ray fluorescence spectrometry was applied to analysis of reference copper, lead, zinc, tungsten and molybdenum ores.
报告了X射线荧光光谱法在铜矿、铅矿、锌矿、钨矿和钼矿标准物质定值分析中的应用。
Describes the malfunctions and troubleshooting measures of high voltage unit of oral panorama X-ray apparatus for reference to the technicians of medical equipment.
介绍了口腔全景X线机高压单元发生故障的表现及分析、处理方法。
In order to measure thickness accurately, it's important for the X-ray thickness measurement equipment to be demarcated using some reference samples.
用一定厚度的校准片进行标定，是X射线测厚设备使用前必须完成的关键工作。
Analyses the cause of the high voltage malfunction of high-frequency for WANDONG 50kW high-frequency X-ray machine and describes the troubleshooting solution for reference.
分析了曾出现过的一次高频发生器故障的产生原因，并介绍了该故障的排除过程。
Analyses the cause of the high voltage malfunction of high-frequency for WANDONG 50kW high-frequency X-ray machine and describes the troubleshooting solution for reference.
分析了曾出现过的一次高频发生器故障的产生原因，并介绍了该故障的排除过程。
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