查询词典 sample size

SEM results show that the sample is homogeneously composed of grains with a particle size of ca.

详细讨论了如何有效调控LiFePO4的粒子尺寸以及包覆碳对其电化学性能的影响。

This dissertation is relation to SrO(La2/3Sr1/3MnO3)n the manganese oxides with RP structure. We mostly studied the structure and electrical transport properties, The major studies are listed below: The classes of magnetoresistance were introduced, the electron and crystal structure and the mechanism of double exchange of manganite pervosike related to colossal magnetoresistance have been summarized. More attention had also been paid to the advance in the study of RP structure manganite and grain system. The principle and process of sol-gel method were introduced. With sol-gel method a series of different grain size La2/3Sr1/3MnO3 sample were prepared.

本文以Mn3+：Mn4+=2：1的Ruddlesden-Popper结构锰氧化物SrO(La2/3Sr1/3MnO3)n为研究对象，系统的研究了利用溶胶-凝胶法制备的n=∞的La2/3Sr1/3MnO3和n=2的La4/3Sr5/3Mn2O7两个系列样品的结构和电磁性质，主要内容包括以下几点：简单介绍了磁电阻效应的分类，概述了具有超大磁电阻效应的锰基钙钛矿氧化物的电子晶体结构和双交换等相关的物理机理，给出RP结构系列锰氧化物的晶体结构和电磁相图以及研究状况，分析了颗粒系统的研究进展。

In the course of amylase content mensuration,the size of the sample′s powder granule is the key factor.

直链淀粉是评价稻米食用、蒸煮品质的一项重要指标，也是优质稻谷定级指标之一。

Since the characteristic properties of polymers depend intimately upon the size of the macromolecules present in the sample it is essential to have a method of describing their dimensions.

由于聚合物的特性首先与样品中大分子的尺寸有关，所以有一种描述分子大小的方法很关键。

Please quote your best prices ASAP, also if possible, can you send us 2 samples in express mail, just one of each sample on Plywood (18mm) and OSB (18mm); doesn't have to be in a large size (8 inch x 8 inch is ok), I need them to get approval from my boss (I think you will agree, this will be a minimum investment for a big orders).

尽快请引述您的最佳的价格，还如果可能，能您寄发我们2 个样品在快件，一个各个样品在胶合板(18mm)并且OSB (18mm)； doesn。。t 必须是在大大小(8 英寸x 8 英寸是好)，我需要他们得到认同从我的上司(我认为您将同意，这将是一种极小的投资为大命令)。

The point size I used for each font sample is indicated in the table.

我点大小为每个样品使用的字体显示在表中。

By Monte Carlo simulation of stochastic demand, the hybrid simulation-optimization policy is brought forward to solve the model as well as the principle to select size of the sample. Benders decomposition algorithm and its accelerated technique are presented to solve the deterministic equivalent of primal problem.

利用随机需求的蒙特卡洛仿真，提出仿真一优化相结合的模型求解策略以及样本容量的选择法则，针对原问题的等价确定性问题设计Benders分解算法及其改进技术求解。

The survey conducted in Taiwan was designed using a multiple-stage sampling method that utilized the principles of probabilities proportional to size, stratified sampling, and systematic sampling to strengthen the sample's effective representation.

为符合研究的需要，本次研究的抽样方法采取较复杂的多阶段抽样法，主要应用「抽取率与单位大小成比例」原则，结合分层抽样、等距抽样等抽样方法的优点，以求提高样本代表性。

We can use a random sample of size n from the population,{(xi1, xi2…, xik; yi): i=1,…,n}, where i denotes observation, and j= 1,…,k denotes the jth regressor.

我们可以使用总体的一个容量为n的随机样本，{(xi1， xi2…， xik； yi)： i=1，…，n}，其中i 代表第i个观察值，j=1，…，k代表第j个回归元。

Compared with other methods, the present solvent thermal method can produce ITO nano-powders with high purity and uniform particle size. The manipulation is very simple and convenient and no calcination process is needed. The reaction temperature can be as low as 190 ℃, which is by far the lowest temperature in ITO nano-powder preparation. The sample also gives a good dispersion property benefited from the unique solvent thermal reaction environment.

结果表明，制备的ITO纳米粉体为立方晶相，粉体的平均颗粒小于100 nm；与已有的ITO纳米粉体制备方法相比，本溶剂热法制备过程无需高温烧结、流程简单，反应过程所需的温度可低至190 ℃，是迄今为止文献报导制备ITO的最低温度，同时所得产物纯度高、粒度均匀、分散性很好。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。