查询词典 systematic sample

Unlike unbiasedness―which is a feature of an estimator for a given sample size―consistency involves the behavior of the sampling distribution of the estimator as the sample size n gets large.

无偏性是，给定样本容量n下，估计量的性质；一致性则是，当样本容量n变大时，估计量的样本分布的变化特征。

According to physical chemistry theory, the interaction between sample and solvent in uncured mix and vulcanite was studied Taking aniline replace ammonia as basic agent, traditional measurement method for bound rubber in uncured mix and cross-linkage density in vulcanite was improved New method ensures sufficient touch between sample and basic agent Besides, experimental operation is simplified, the condition is controlled easily, and reproducibility is good for new method It is believed that new method is suitable for other rubber matrix and other filler

探讨未硫化胶和硫化胶试样与各种溶剂的相互作用。用苯胺代替氨作为碱性试剂，改进了传统结合橡胶和交联密度的测定方法。新方法保证了溶剂与试样的充分接触，且实验操作简单，条件易于控制，结果重现性好。新方法可用于其它橡胶基复合材料体系。

Firstly, to work out the distribution features of underground nuclear explosion radioactive leak and γ-ray intensity of infinite uniform radioactive sample and limit radioactive sample inborehole axle.

对核爆炸放射性泄漏分布特征进行了理论计算，研究了无限均匀放射性样品和有限厚放射性样品γ射线沿井轴的分布计算。

The aim of this research is to find out the experimental parameters that affecting the results when analyzing bacteria by MALDI TOF MS, and to set up a general sample preparation protocol for establishing mass database of Bacillus anthracis and Yersinia pestis. It will play an important role in rapid identification of bacteria, and tracing its origin in the scenario of bioterrorism and outbreak of infectious disease for microbial forensic analysis. Methods:As for the universalness of sample preparation protocol for bacterial analysis by MALDI TOF MS, bacteria being investigated included: gram-positive bacteria including B.

本研究通过对MALDI TOF MS分析细菌的方法进行系统的研究，阐明影响MALDI分析的重要实验因素的作用，并建立MALDI TOF MS分析细菌的标准实验方法，从而实现不同菌种和同一种内不同菌株的鉴定，为建立炭疽芽孢杆菌和鼠疫耶尔森氏菌的质量图谱数据库奠定基础，从而能够快速准确地检测和鉴定我国不同来源的炭疽芽孢杆菌和鼠疫耶尔森氏菌，在生物恐怖或传染性疾病爆发时，作为微生物法医学的一种重要技术，快速、准确地鉴定细菌，并追踪其来源。

Result: The electrophoretic mobility of labeled sample reduced compared to that of an unlabeled control sample.

结果：地高辛标记的TRAILR-2电泳能力下降，标记成功。

The whole column is placed in a thermostatically controlled heating jacket. A volatile sample is introduced into the column using a syringe, and an unreactive carrier gas, such as nitrogen, passed through it. The components of the sample will be carried along in this mobile phase. However, some of the components will cling more readily to the stationary phase than others, either because they become attached to the solid surface or because they dissolve in the liquid.

将整根柱子固定在一个可控制的恒温热罩内，用注射器把易挥发的待分析样品加入到柱子中，再令反应惰性的气体载体通过柱子，例如氮气，此时样品的各成份就会在流动相中移动，然而其中某些成份更倾向依附于固定相，可能的原因是它们能够依附于固体表面或是溶解于固体表面的液体中。

The analysis test is such a method that divides the unrehearsed objects into several types whose sample data have been achieved and establishes test according to some criteria, then tests and classifies the sample of unknown type.

摘 要 ：判别分析法是在已知研究对象分成若干类型并已取得各种类型的一批已知样品的观测数据，在此基础上根据某些准则建立判别式，然后对未知类型的样品进行判别分类。

So I specified the instance as humble as possible. In fact, we are discussing worldly things; we may take a sample that exists in the world. When we discuss unworldly things that belong to the spirit aspect or other space, we have difficulty in taking the worldly sample.

所以我才会尽量的以低微的事物为例，实际上，当我们讨论世俗的事务时，我们可以以实际存在的例子来说明；然而，一旦我们所讨论的是非世俗的；是属于精神层面或另一个空间的东西时，我们就很难再使用世俗的事物来加以说明了。

Authentication is the process of accepting or denying a request from a client, so AuthFilt will be notified each time an authentication request comes in. This sample uses a file to keep track of authorized users, but you might modify this sample to access a database which holds user info.

身份验证是接受或拒绝来自客户端的请求过程，因此AuthFilt将通知对方身份验证请求来英寸本示例使用一个文件的时间来保持跟踪的授权用户，但您可能会修改这个示例访问数据库，其中保存用户信息。

Methods: A sample of 114 inpatients with schizophrenia and a sample of 114 close-matched nonclinical adults in China were studied with the measures of WAIS-Ⅲ Chinese version.

114例精神分裂症患者组成的病人组和114例健康成人分别给与韦氏成人智力测验第三版中文版的施测。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。