查询词典 sample method

Based on different thickness hydroxylation content in quartz sample, the changes of Hydroxyl peak 3675cm^(-1 intensity is obvious of different thickness in quartz sample, and withe increase of Quartz plate thickness, the hydroxyl peak transmittance increases.

通过对石英样品中不同厚度羟基含量分析得出，对于不同厚度的石英样品，羟基峰（3675cm^(-1)左右）的强度变化十分明显，石英片厚度的增加，羟基峰的透射率增大。

In this study, we use a sample of 186 firms in Taiwan that have export ratio for at least 10 percent in the sample period to examine their exchange rate exposures and the effect of usage of currency derivatives on currency exposures. In the determinants of exchange rate exposure, we find that exchange rate exposure is positively related to the foreign sales ratio, firm size and quick ratio.

过去相关外汇暴露的文献，主要在讨论国际企业的外汇暴露的大小与其决定因子，受限於企业使用衍生性金融商品交易资料取得不易，过去的模型中通常仅以虚拟变数的方式，来分析公司使用衍生性金融商品避险的影响，而未进一步分析其使用程度对外汇暴露的影响。

In this paper,on the basis of theoretically describing mathematics model of the optimum sample plots in certain monitoring area,systematic research and analysis had been carried out through realitic instances and sampling problem of the optimum sample plots had been solved effectively.

该文在理论描述特定监测区域最优样地数学模型的基础上，通过实例进行了系统研究与分析，有效解决了最优样地的抽样问题，所得结果可用于指导生产实践。

Some troubles emerge when we use regression estimator in such a case:in a continuous survey research,when the prior sample and the present sample are independent and they have different elements,we can not compute the regression coefficient.

作连续调查研究抽样时经常用到回归估计。如果前后两个样本相互独立，并且它们所包含的元素不同，就无法直接计算出回归系数。

4 X y Sample regression line, sample data points

样本回归线，样本数据点和相关的误差估计项

1 From the sample of clay to be tested, weigh out 20.0 grams of representative sample.

从待测的粘土样品中，称取20.0g的有代表性的样品。

Most of the AFMs scan sample under a stationary cantilever. These AFMs only can test small samples, because the size and weight of the sample is restricted by the size and resonance frequency of the tube piezoceramics scanner.

常见的原子力显微镜多采用样品扫描方式，因为样品尺寸和重量受到传统的管状压电陶瓷扫描器的限制，它只适合小样品的测试。

The surface morphology was studied by the AFM also.Though the average size of grain and the RMS(root-mean-square) value of the two samples is diffe-rent,comparing sample A with B, the result shows that sample A is more smooth.

通过原子力显微镜，对生长在两种衬底上薄膜的表面形貌做了观察，其晶粒的大小与表面粗糙度有一定的差别，表明二者都是以柱状形式生长的。

The essay reviews previous study on this topic and A-share listed firms that have periodically rotated auditors during the period form 2003 to 2005 will be selected as research sample. Basing on whether or not the listed firm changes the accounting firm, the sample will be classified into two group—internal auditor rotation group and external auditor group.

本文在回顾国内外重要文献的基础上，选取2003-2005年进行审计师定期轮换的A股上市公司作为研究样本，并将其按是否同时变更会计师事务所分为内部轮换和外部轮换两类，使用调整后的截面Jones模型估计的操纵性应计利润绝对值计量盈余质量，并将其作为审计质量的衡量指标，对定期轮换与审计质量之间的关系进行了实证检验以分析定期轮换制度的实施对审计质量的影响。

We detected Fibrobacteres in the rumen sample (3.33%) but not in the enriched sample.

在水牛瘤胃内容物中，丝状杆菌占3.33%，但在富集培养物中未被检测到。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。