centering support是什么意思

用法例句

The production mode with high aluminum level,general molecular ratio,low electric voltage and strengthening corner insulation could overcome the negative inflence that high aluminum level brought completely.

采用高铝水平、中分子比、低电压的生产模式并加强角部保温,完全可以克服高铝水平带来的负面影响。

How to plan and execute an interim analysis in clinical trial;

如何在临床试验中计划和实施期中分析

Values of interim analysis in drug clinical trials studies;

期中分析在药物临床试验中的价值

Determination of power and sample size in interim analysis of clinical trials using the PASS2000 statistical software;

利用PASS2000估计临床试验期中分析效能及样本大小

Water birth,an analysis of 462 cases;

水中分娩462例临床分析

Study on the relationship of 66 maternal/neonatal infections with water polluted by bacteria from the pool of water birth;

水中分娩缸水细菌污染与母婴感染相关性探讨

A clinical study on 280 cases of water birth;

水中分娩280例的临床研究