查询词典 sample distribution

The results showed that the determined components are homogenous on different position of sample surface and in different depth of the sample, and the repeatablity of determination resuts was also good under same preparation conditions. So this way could surmount the error from the sample preparation of powder press.

试验结果表明，块状样品表面不同部位及不同深度的化学成分分布均匀，相同熔融条件下的样品重复性良好，解决了用粉末压片制样对测定结果带来的误差。

A sample and hold circuit (10,50) is arranged to operate in a plurality of states including at least one sample state and a hold state to sense the current flowing through the sense cells (4) when in the at least one sample state but not in the hold state.

取样保持电路(10，50)设置成在多个状态工作以在至少一个取样状态而不是保持状态读出流经读出单元(4)的电流，其中所述多个状态包括至少一个取样状态和保持状态。

Nevertheless, in many practical applications such as in low sample support or when the signal statistics are rapidly time-varying, we may not have enough sample to form the sample covariance matrix.

然而，常规的子空间估计方法由于涉及到阵列协方差矩阵的估计及其特征值分解，从而需要较高的计算复杂度。

For the case where the sample covariance matrix is unknown or the sample support is not sufficient to form the sample covariance matrix, we carry out the spatially smoothed CSA-MSWF to quickly find the signal subspace and the noise subspace.

如果阵列协方差矩阵是未知的，我们采用空间平滑的CSA-MSWF快速计算信号子空间和噪声子空间的基矢量。

Composition of the sample is random implies that the sample mean, the sample total... are random variables.

检讨公司在特定的销售区域中，可能扩展的程度，及研究各区域之相对市场的有利机会。

The procedure involves the generation of a second independent sample and a test that the estimates of the sample mean and standard deviation determined in the first sample are reliable estimates of the population mean and standard deviatio~.

涉及的程序产生的第二个独立的采样和测试的估计数的样本均值和标准差确定的第一个范例是可靠的估计的人口平均和标准偏差。

The popular method is to approximate the pattern of a sample by multiplying the size of the sample and the pattern of the unit sample.

国际上普遍认为：对不同大小的数据样点，不可能有统一的模板。

In chapter one,the writing research the questions in sample rotation when sample with simple random sampling according the process of the sample rotation.

第一章 这章内容属于文献综述性质的，主要是按样本轮换的实施过程，讲述前人对简单随机抽样下的样本轮换理论的有关问题。

Experimental result showed that under the wavelength of 460 nm,there was good linear relation between absorbency and content of SO42-;and stationary time that absorbency value needed became longer along with the increase of sample quantity of phosphoric acid.When absorbency become stationary,there is good linear relation between the phosphoric acid sample quantity and the content ofSO42-.So the content of SO42- can be adjusted by turning the sample quantity to make it in scope of standard curve.

实验结果表明，在波长为460 nm处，硫酸根含量与吸光度成良好的线性关系；随着磷酸取样量的增加，吸光度达到稳定值所需的时间相应增加，稳定后磷酸取样量与硫酸根含量成良好线性关系，因此实验过程中可通过调整磷酸的取样量来调节硫酸根含量，使之在标准曲线的测定范围内。

In chapter 4 based above two chapters, we disscuss sampling method of supplemented sample under both cluster sample and stratified sample having auxiliary information.

已有的 分层抽样和整群抽样方案都有自己的使用范围，在不适合的情况下使用效率很低。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。