Research shows that: the power of cross-sectional group achieved by a quality improvement results can be achieved within the Department, group of the results obtained from 200% to 600%.
研究表明：放权的跨部门的小组所取得的质量改进成果可以达到部门内的小组所取得成果的200%到600%。
With the model, the cross sectional shape of a pressing is analyzed, and the public feasible zone of sectional angle is determined, and a group of target functions are created as optimization objects.
利用该模型对冲压件截面形状进行了分析，确定了截面转角的公共可行域，并建立了一组目标函数作为优化对象。
METHODS In a cross-sectional survey, we studied purified protein derivative(PPD) test in exposure group and control group.
方法采用分组对照研究的方法，检查组与对照组对结核菌素纯蛋白衍化物（PPD）试验的反应情况。
MethodThe study was a cross sectional survey, sampling the whole group aged 80 years and above, who live in Jiajian country, Bama County.
方法截断面调查，整群抽取巴马县甲篆乡80岁以上老人。
MethodThe study was a cross sectional survey, sampling the whole group aged 80 years and above, who live in Jiajian country, Bama County.
方法截断面调查，整群抽取巴马县甲篆乡80岁以上老人。
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