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This paper stated several different methods about the measurement of the amperemeter resistence such as: isogonic method half-deflection method, substitution method and voltammetry.

本文采用了几种不同的实验方法测量表头内阻:等法、半法、替代法、伏安法。

Results The intake of grains and animal food was reasonable, but that of vegetables, fruits, milk and beans was relatively low; the intake of retinol, thiamin, lactoflavin, ascorbic acid and calcium was relatively low compared with the RNIs or AIs.

结果 无锡市农村居民谷类、动物性食物摄入较合理,蔬菜、水果、奶类、豆类食物摄入低,视黄醇、硫胺素、核黄素、抗坏血酸、钙摄入量占推荐摄入量或适宜摄入量百分比低。

In this paper, we improve the EWMA Futures Margin based on normal distribution assumption and propose a new model of futures margin based on skewed EWMA estimator which based on the asymmetric laplace distribution that is sound to capture leptokurtosis and fat-tail.

本文是对建立在正态分布假设的EWMA期货保证金模型的改进。文中引入基于非对称Laplace分布发展起来的有型EWMA方法,建立了新的期货交易保证金模型,较好地反映了期货合约价格序列有、厚尾的现象。

Lateralization: the development of control over different functions in different parts of the brain is known as cerebral dominance or lateralization.

大脑各部分对不同功能的控制称为脑单侧利或侧优势。

The results of lattice beam internal force calculated method based on double parameter groundsill model are more approach the experiment measured values because of consideration of the pass of shearing force in soil, and its calculated workloads are similar with the method of winkler elastic foundation. Besides, the thesis also discusses the moment of torque affected results on node stress situation and the correction of stress value at the bottom of cross node of lattice beam. Due to the repeat calculation of node area during internal force calculation, the stress value of the bottom of beam is lower, this may lead the calculated value unsafe, but the corrected stress value will more approach to practical situation.

对格构梁的内力计算提出基于双参数地基模型的格构梁内力计算方法,其计算结果表明,双参数地基模型上的格构梁内力由于考虑土中剪力的传递更加接近于试验实测值,其计算工作量与winkler弹性地基梁法相当,此外,文中还探讨了扭矩作用对格构梁节点受力情况的影响结果以及格构梁交叉节点底部的应力值的修正,由于内力计算过程中节点处的面积被重复计算,使得梁底应力小,可能导致计算结果的于不安全,修正后的应力值更接近于实际情况。

This paper is concerned with combinatorial identities which can be derived by using Mbiusinversion and lattice function in the poset R_.

给出格路集R_的定义和其上的一种序关系;利用格路函数的性质计算出该序集的Mbius函数,从而建立其上的Mbius反演和一系列多元组合恒等式,使一些卷积公式成为其特例

There are five important soft sensor models of moisture have been established in this paper: the moisture model of The Recursive Least Square based on Lethe gene, the moisture model of Principal Component Regression , the moisture model of Partial Least Square, the moisture model of BP Nerve Network, the moisture model based on PLS—BP. All of these soft sensor models of moisture are systematically analysed by using Compound Correlative Coefficient. The factors which influence control of moisture are discussed on detail in this paper.

建立了五个重要的水分软测量模型,即渐消记忆递推最小二乘法水分模型;主成分分析法水分模型;最小二乘法水分模型;BP 神经网络水分模型;最小二乘BP 网络水分模型;对以上水分软测量模型用统一的评价指标复相关系数对它们的优劣进行了详细的分析,选出最适合水分建模的建模方法,同时对影响水分的各个因素进行了深入的分析和探讨。

The results show that dendritic segregation, banded segregation, liquation carbide and secondary carbide precipitated at the grain boundary or martensite lath are the main reasons causing the low impact toughness of H13 mandrel steel.

研究结果表明:枝晶析、带状析、液析碳化物及存在于晶界或马氏体边界的二次碳化物,是导致芯棒冲击韧性降低的主要原因。

On the other hand, due to the marginal utility of capital and liquidity preference of the role of two factors, the capitalists profit expectations for low, interest rates are relatively high, resulting in lack of consumer demand and investment, lack of demand, thereby determining the "laissez faire" will appear the phenomenon of mass unemployment.

另一方面,由于资本边际效用和流动性好两个因素的作用,资本家对于利润的预期低,而利息率却相对高,从而造成消费需求不足和投资需求不足,进而决定了"自由放任"会出现大规模失业现象。

Optical fiber magnetic field sensor is obtained by coating the TbDyFe film around the naked polarization maintaining fiber by mean of DC magneton sputter technology.

通过直流磁控溅射镀膜,将磁致伸缩材料———铽镝铁被覆在一段去掉保护层的保光纤上,得到铽镝铁被覆保光纤结构的磁传感单元。

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推荐网络例句

The X-ray diffract was used to analyze the crystal structure of the composite. Results show that after the talc was treated with blend coupling agent, the crystal structure of talc changed, and effect Intercalation phenomenon.

通过X射线衍射分析可知,用混合偶联剂对滑石粉进行预处理后,滑石粉晶体结构发生改变,产生了插层现象,使PP/滑石粉复合材料为纳米复合材料。

An authentic Maui wedding might require the services of a 'kahu', which is a Hawaiian minister.

毛伊可能需要一个真实婚礼服务'kahu',这是夏威夷部长。

Funds involving such cases are limited and there is no huge capital flight.

与此有关的资金数额是相对少数的,并没有引发资本外逃现象。