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ytc

  • 网络云锡;青年旅游卡;韩国永泰;赎回收益率;永泰
ytcytc
  1. Reproducibility and validity of a food frequency questionnaire among YTC miners

    云锡矿工食物频率问卷的信度和效度研究

  2. The YTC will be lower if the reverse is true .

    云锡将降低,如果情况正好相反。

  3. The Cohort Study on Intake of Alcohol and Lung Cancer Risk in the Yunnan Tin Corporation ( YTC ) Miners

    酒精摄入量与云锡(YTC)矿工肺癌的队列研究

  4. Methods Fitting Excessive Relative Risk Models , Absolutive Excessive Risk Model , and so on to the YTC cohort data .

    方法拟合超额相对危险度模型,绝对超额危险度模型,非标准模型等分析云锡现场队列研究资料。

  5. Objective : To study the relationship between consumption of vegetables and carotenoids and lung cancer risk in Yunnan Tin Corporation ( YTC ) miners .

    目的:了解食用蔬菜与云南锡业公司(云锡,YTC)矿工肺癌危险性的关系。

  6. Methods : Poisson regression models and the classification tree statistical model were applied to the analysis of data derived from a high risk cohort of lung cancer among YTC tin miners .

    方法:应用Poisson回归和树型分类分析在云锡肺癌现场建立的高危人群队列资料。

  7. This paper is to give a systematic introduction to the technology used by YTC , including development pattern , minin method , hydromining equipment , hydraulic transport and auxiliary operations .

    本文就云南锡业公司水力机械化开采从开拓形式、采矿方法、水采设备、水力运输以及辅助作业等方面作了较为系统的介绍。

  8. This poper evaluated the reproducibility and validity of a food frequency questionnaire ( FFQ ) used in a prospective study among Yunnan Tin Corporation ( YTC ) miners .

    本文研究了云锡矿工肺癌高危人群普查中所使用的食物频率问卷(FoodFrequencyQuestionnaire,FFQ)的信度和效度。