实验室方法

Hypothesis testing is a usual method of statistical technique ,which is used for deducing checkout discrepancy of laboratories.

假设检验是统计技术较常用的一种分析测定结果进而推断化验室测定的方法、人员、实验室是否存在系统差异的技术。

But they have often been found to have benefits for human health when analyzed in laboratories.

但他们却常常被发现以造福人类健康的分析方法在实验室中。

Among them, nitrate-sulfuric acid system with higher nitrating activity can get high yields at mild condition in the nitration of deactivated aromatic compounds and could be used in the laboratory and industrial applications.

其中，硝酸盐/硫酸体系具有较强的硝化能力，对于钝化芳环，可以在温和条件下以高收率得到硝化产物，在实验室制备或工业应用中具有较高的应用价值；其他硝化方法由于各种原因暂时不能对钝化程度较高的芳环进行硝化，还需进一步研究具有较高活性的硝化体系。

In this paper , an accurate method was built up for the determination of heavy metal elements including Cr, Cd and Pb . After nitrified, the samples of dirty water of laboratory and drinking water were determined in the optimized condition.

本文建立了一种准确的重金属元素铬、镉、铅的火焰原子吸收光谱检测方法，并在优化的操作条件下，对实验室污水水样进行湿法消解，测定。

A following-up experimental observation for the changes of the microbiological indexes of the water samples from the taps of water dispensers with different structures during the different prolongating operating period was carried out.

方法选择市售饮水机30台，按型号构造分成3组，在实验室模拟跟踪观察不同构造饮水机出口水的微生物指标随时间延长而变化的情况。

The following part discusses the method of scene optimized, the integration of virtual lab and the promulgating technology based on Internet.

接下来的部分讨论了世界优化方法、实验室集成和基于Internet的发布技术。

While science is taught in laboratories, the experimentalactual scientific treatises from Copernicus to Bohr. By reenacting the unfolding history of

科学是在实验室里教，用实验方法来展示科学史上的关键实验，同时学生还要阅读从哥白尼到玻尔的原始科学论文。

The rehydrated lyophilized platelets keep intact cellular structure. The result supports method building of lyophilized platelet in our lab.

冻干再水化的血小板形态结构完整，细胞内超微结构完好，为本实验室成功建立血小板冻干保存方法提供了依据。

For that reason, labs around the world are working on other ways to trigger reprogramming.

由于这个原因，世界各地的实验室都在寻找其它方法来引发细胞再编程。

Finaly many experiments are completed in the lab in diffrient conditions , which contains illuminance of crack 、 contrast of image 、 distance of shotting and focal length, to review the accuracy of the new system and to analys the rule of th effection of the accuracy .

在论文的后阶段，设计了实验室中进行的两个层次的考核和标定试验，并对应用中必然遇到的物面光照度、图像对比度、测量距离和焦距的改变，对试验样本测量精度的规律作出了初步分析，为新方法的进一步完善提供了有价值的工作基础。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。