抽样

The case depth is the most important quality index of carburized materials, and it is usually checked by selective examination. This traditional method is inefficient and low reliability.

渗碳层深度是衡量渗碳质量的主要技术指标之一，传统的渗碳层深度检测方法是对大批产品采取抽样检查，不仅检测效率低，可靠性差，而且检测时需破坏样品。

The critical loess slopes along the highways were the inputted form of slopes and measured values of cohesions and internal friction angles were the reference values of random variants. Monte-Carlo method was used to choose samples and the formula of the Bishop simplified method was regarded as control equation. The reliabilities of the loess high slopes in three positions of Shaanxi Province were simulated. Failure probability and reliability index were obtained.

以极限状态坡作为输入坡型，将陕西黄土地区公路勘察中实测的粘聚力和内摩擦角作为主要随机变量参考值，采用Monte-Carlo法抽样，简化Bishop法公式作为控制方程，对陕西地区3个地段的黄土高边坡进行了可靠度模拟，获得黄土高边坡的失效概率与可靠指标。

One from France, Italy imports a number of batches of cheese were sampled exceeded the coliforms.

一个由法国，意大利进口的奶酪被抽样批数超过大肠菌群。

Methods a cluster stratified sampling method was used to chose 3 989 pupils from six schools of different levels in xiamen. they were investigated with conners parent symptom questionnaire.

采用整群分层抽样法抽取厦门市6所不同层次的小学一～五年级学生3 989名为调查对象，应用conners量表进行调查，dsm-ⅳ诊断标准确诊。

Examination of the conidia on glass coverslips sampled 24 h after discharge resulted in a survival rate of 42～81%at 51%RH, 69～89%at 74%RH, 70～95%at 85%RH, 67～100%at 90%RH, 76～100%at 95%RH, and 56～100%at 100%RH, respectively, varying with different temperature.

在无放回抽样观察中，孢子弹射后第24 h的存活率在51%、74%、85%、90%、95%和100%RH与不同温度的组合中分别为42～81%、69～89%、70～95%、67～100%、76～100%和56～100%。

Combination of color in the basic theory, CIELAB system on the above sampling inspection data for analysis of seeastigmatism deflexions

会面颜色基不梢假想洋CIELAB编制有关边容，不不不不差以上抽样检测数据举行色不不不不差不正向阐发

Therefore, you must use business card printing colorimeters sampling on the timely detection of semi-finished products, to learn about printing seeastigmatism deflexions timely process parameters to control printing color quality in the smallest of changes in the area.

因此，务必在制卡历程洋搁置色不不不不差计不不不不差半制品举行当令抽样检测，不懂印品色不不不不差不正向并准时调动工艺参数，把持印品颜色质度在最小的变冻边界边颠簸。

Methods To adopt multiple phase,stratified random sampling and questionnaire survey,857 donators involved.

采用分层随机抽样的方法，对前来献血的857名献血者进行调查，并对知情人进行访谈。

On the other hand, this article listed the AML code for automated extraction drainages from DEM data. Finally the authors checked the result of automated extraction using some surveyed data in Haihe drainage area. Through analysis on the comparison between the flow networks and drainage area that extracted using this method and surveyed data, it is concluded that this method is effective and efficient.

另外，还给出了利用GIS软件ARC/INFO GRID提取全国流域的AML程序代码，并以海河流域作为实验区将抽样测量结果和自动提取结果进行了实验对比分析，其结果表明利用该方法提取的流域数据与利用手工方法绘制的流域基本一致，证明该方法是有效的。

The possibility of researching gene mutation with the technique of gene chip was discussed. A new imagination to randomly determine DNA sequence in different living beings with the technique of gene chip was advanced. In this way, whether the encoding sequence gene in DNA of eukaryon organism has some regularity was studied.

进而提出新设想——采用基因芯片技术对不同生物群体随机抽样进行DNA测序，从而探讨在真核生物DNA分子链上编码序列遗传基因的变化是否有规则而非随机的，非编码序列遗传基因是否为生物进化过程中曾经有表达能力的结构基因，并分析可能获得的结果。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。