Using atom absorptiometer, the relationship of K content in the catalyst and the detecting time is analyzed. 测试了元件在工作过程中钾的“流失”对元件稳定性的影响。
Methods: Measuring the bone density of mandibular angle and coxofemoral region with dual energy X-ray absorptiometer(DXA). 方法：采用双能X线吸收测量仪(DXA，骨密度仪)，测量右侧髋部与左侧下颌角的骨矿物密度。
nondispersive X-ray absorptiometer 非色散X射线吸收光度计
Keywords Bone mineral density;Exercise;Correlation;Dual energy X-ray absorptiometer;Healthy youth; 关键词骨密度;双能X线骨密度仪;运动;相关;健康青年;
Keywords Female adults;Peak bone mass;Cubic regression model;Dual energy X-ray absorptiometer; 成年女性;峰值骨量;三次回归模型;双能X线骨密度仪;
