随机法

Based on physical characteristics, existing stochastic estimation methods of equipment sensitivity to voltage sag use subjective probability models to express the probability distribution of voltage tolerance curve of equipment in the uncertain region. But the parameter estimation needs vast sample data. These methods may result in man-made errors.

现有负荷敏感度随机估计法以电压暂降的物理特征为基础，用主观概率模型描述负荷电压耐受曲线(voltage tolerance curve，VTC)的随机分布规律，所需样本量大，在实际中难以实现且可能引入主观误差。

80 Individuals of ATA-A F2 plants were used for RAPD molecular mapping of the monoecious gene by bulk segregant analysis. 840 random primers were chosen for polymerase chain reaction amplification between monoecious pool and andromonoecious pool, the results showed that: primer S128 was tightly linked to the monoecious character, and primer S493 was tightly linked to the andromonoecious character.

以甜瓜单性花系ATA-A系与两性花品种YJX-1的杂交F2代的80个单株为材料，利用群分法进行单性花基因有关RAPD分子标记研究，筛选分析了840个10bp随机引物的PCR扩增谱带，结果表明，随机引物S128在1180bp，S493在930bp处产生与性别相关的特异性条带，S128的特异条带与单性花性状相关，S493的特异条带与两性花性状相关。

Three uniform random sequences are built by the linear congruential method, of which two are used to form integer num, ber and decimal fraction parts of the new random sequence respectively and the third to shuffle the new sequence.

采用线性同余法生成3个均匀分布随机序列，其中两个分别组成新的随机序列的整数和小数部分，第3个用来对新序列进行混洗。

Ninety patients undergoing hypogastric operation were divided randomly into three groups:0.894% ropivacaine mesylate;0.75% ropivacaine hydrochloride and 0.75% bupivacaine hydrochloride.

方法采用随机双盲法，将90例下腹部手术患者随机分为三组(n=30)：Ⅰ组应用0.894%甲磺酸罗哌卡因；Ⅱ组应用0.75%盐酸罗哌卡因；Ⅲ组应用0.75%盐酸布比卡因。

In this dissertation, the probabilistic seismic response of liquefiable foundations and earth dams was carried out via stochastic ...

本文运用随机动力有限元法，对可液化地基与堤坝在非平稳随机地震输入下进行了动力响应的可靠度分析。

In this dissertation, the probabilistic seismic response of liquefiable foundations and earth dams was carried out via stochastic finite element method under nonstationary seismic loadings.

本文运用随机动力有限元法，对可液化地基与堤坝在非平稳随机地震输入下进行了动力响应的可靠度分析。

INTERVENTION: The models of ischemia/reperfusion in SD rats were established by middle cerebral artery occlusion with a nylon monofilament suture. The rats were randomly divided into the treatment groups 32cases and the control group 32 cases. Each group was divided into eight subgroups, which consisted of 4 rats at 2 hours, 6 hours, 12 hours, 24 hours, 2days , 3 days, 7 days and 14 days after reperfusion of MACO.

干预措施：成年健康雌性SD大鼠68只，应用线栓法建立SD大鼠大脑中动脉阻塞再灌注模型，随机分为治疗组32只和对照组32只，每组再随机分为缺血1.5 h再灌流2，6，12，24 h，2，3，7，14 d组(n=4)，另外4只作假手术组。

Methods The present study is a randomized comparative clinical trial. 607 healthy parous women were randomly allocated into GyneFix IN group (n=302) or TCu 380A group (n=305). IUD was inserted during the menstrual interval by the trained investigators. Follow-up were arranged at 1,3,6 and 12 months after insertion. The discontinuation rates were calculated by life table method.

采用随机对比性多中心临床研究方法，对607例健康经产妇女由经过培训的专人以随机方法于月经间期放置GyneFix IN IUD 320例(GyneFix IN组)及TCu 380A IUD 305例(TCu 380A组)，于放器后1、3、6和12个月随访，以生命表法统计两种IUD的终止情况。

Healthy parous women were randomly allocated into GyneFix IN group (n=302) or TCu 380A group (n=305). IUD was inserted during the menstrual interval by the trained investigators. Follow-up were arranged at 1,3,6 and 12 months after insertion. The discontinuation rates were calculated by life table method. Results At the end of the first year, there was no pregnancy occurred in GyneFix IN group.

采用随机对比性多中心临床研究方法，对607例健康经产妇女由经过培训的专人以随机方法于月经间期放置GyneFix IN IUD 320例(GyneFix IN组)及TCu 380A IUD 305例(TCu 380A组)，于放器后1、3、6和12个月随访，以生命表法统计两种IUD的终止情况。

METHODS: Six rats were selected randomly for sham-operated from seventy-eight adult SD rats. The rest rats were divided randomly into two groups: LP-treated group, and NS-treated group. These rats were injured with Allen's weight-dropping model after seven-day peroral administration.

从78只成年SD大鼠中随机抽取6只作为假手术组，其余大鼠采用抽签法随机分成应用阿伐他汀的治疗组和应用生理盐水的对照组。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。