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The research uses natural experimental means, adopting 2 X4 bi-factor random experiment design. 本实验运用自然实验法(校本培训)，采用2×4二因素随机实验设计。
Soiled dishes were piled at random. 脏碟子胡乱地堆放着。
The five experiments gave quite disparate results. 这五次试验所获得的结果迥然不同。
The librarian took a book at random from the shelf. 图书管理员从书架上随便拿了一本书。
The results of the two experiments were conflated. 这两项实验的结果合并在一起了。
Experiments have corroborated her predictions. 实验证实了她的预言。
Random mating within a breeding population. 自由交配在一个育种群中自由交配
DESIGN:A complete randomized experiment SETTING:The Department of Traumatic Orthopedics and Hand Surgery of the First Affiliated ... 广西医科大学第一附属医院创伤骨科、手外科广西壮族自治区南宁市;
Chose a card at random from the deck. 从一副牌中任意选出一张
By mere chance or fortune; at random. 碰巧; 胡乱地; 随意地
Their experiments came to nothing in the end. 他们的实验以失败告终。
Experiments that paved the way for future research. 为将来的研究工作铺平了道路的实验
We drew this conclusion on the basis of experiments. 我们是在试验的基础上得出这个结论的。
The scientist is doing experiments no one has so far attempted. 科学家们正在作一项迄今为止没人做过的实验。
An estimator is a random variable. 估计量是一个随机变量。
Marked by a lack of care, accuracy, or organization; random. 漫无目的的缺乏谨慎、精确或组织性的; 随意的
He had passed through many difficulties during the experiments. 在试验时他经历了许多困难。
The children sat around the table at random. 小孩们随便的围坐在桌子旁边。
On random inspection, the meat was found to be bad. 经抽查，发现肉变质了。
You have introduced a partly random component. 你介绍了一个在一定程度上属于偶然的成分。