方法：本研究通过对实验组与对照组剂量作业测验和视觉—运动反应时测定结果进行比较。
Methods:Loading test of work capacity and the reaction chronaxy of vision-movement were adopted and compared between obesity group and control group.
方法对两种数字化成像系统的曝光剂量、成像时间和图像质量进行比较分析。
Methods the exposure dose, imaging time and image quality were compared in the two digital imaging system.
本文介绍航空飞行高度上的辐射环境及空勤人员辐射剂量的估算方法和常用的测量手段，并比较了不同方法的计算和测量结果。
This paper introduces the dose rate evaluation of cosmic radiation at the flight altitude and several common measurement methods and compares their calculations and results.
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