许多文献认为，弱介质中电场解用时域谐波叠加形式分析时，无因果关系可循。
It has been reported in many literatures that electric field solution is not cau sal when formed by a superposition of time harmonic waves in an attenuation medium.
运动性内源自由基与细胞适应性调节机制、运动损伤的因果关系、疲劳发生的机制等方面研究目前仍无突破性进展。
The studies of free radical during exercise on effects of the mechanisms of cell adaptive regulation and exercise-induced fatigue and the causality of sports injury are still no obvious development.
汉语儿童因果和递进复句成绩无显著性差异，而条件复句的成绩低于二者。
No significant difference between score of progressive complex sentence and cause-and-effect complex sentence, but the score of conditional complex sentence was lower than them.
并且证明了在正态分布的假设下，该总体平均因果效应的极大似然估计是相合无偏且渐近正态的。
The maximum likelihood estimator for population average treatment effect is proved to be consistent, unbiased and asymptotically normal.
并且证明了在正态分布的假设下，该总体平均因果效应的极大似然估计是相合无偏且渐近正态的。
The maximum likelihood estimator for population average treatment effect is proved to be consistent, unbiased and asymptotically normal.
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