查询词典 square deviation

In order to improve the measuring accuracy and efficiency, a high accuracy inspecting system for measuring the centroid and centroidal deviation of bullets based on three point method is designed. The working principle, relevant calculation formulae and the measuring equipment for measuring the centroid and centroidal deviation of bullets are presented, and the main factors affecting measuring precision are discussed. Then, a multiple measuring platform with automatic leveling and column structure autorotation of 90° is put forward.

为了提高其测量精度和效率，设计了基于三点法的高精度弹丸质偏心测量系统，介绍了测量原理、计算公式和测量设备，分析了测量误差产生的因素，提出了一种多测试平台和自动调平以及弹体自动旋转90°的设计思想。

In this paper,we calculate average deviation s and give two kinds of estimate of standard deviation for the normal population.

求出了正态分布的平均偏差，并由此给出了正态总体标准差的两种新估计。

The average deviation of required vehicles is 0.21, and the average deviation of distance percentage is 1.87%.

与文献已知最佳解比较，平均车辆数误差为0.21辆；距离误差为1.87%。

It includes bore/outerside diameter deviation from basic, inner ring/outer ring width deviation in single radial plane.

几何精度包括内径偏差、平均内径差、外径偏差、平均外径差、套圈端面平行差的允许值。

The results show that when the test portion weight of the proof gold and samples is reduced to 160.00~200.00mg, there has no influence on the result of gold content. Respectively using magnesium oxide and bone ash cupels, the result deviation of gold content in the samples is within the allowable deviation of the national standards. The result of gold content in samples is much more closed to the theoretical value by adding proper copper in the proof gold. The additive amount of silver (2.5 to 2.7 times equal to the weight of the proof gold) in the proof gold and samples has no influence on the result of gold content.

结果表明，当标准Au与样品的称样量降为160.00~200.00mg时不影响其含Au量的分析结果；分别使用镁砂灰皿和骨灰灰皿，样品含Au量的分析结果与理论含Au量的偏差均在国家标准的允差范围内；标准Au中加入适量的Cu后测得样品的含Au量更接近于其理论含Au量；标准Au与样品中Ag的加入量（2.5~2.7倍Au质量）对样品含Au量分析结果的影响不大。

Thirdly, Through the introduction of the Burckhardt road model 、Gim tire model、bus brake model and Time-domain model of road roughness ,ABS system with a fuzzy controller based on the slip rate deviation and deviation rate of change was designed. The ABS system on account of impacts of air suspension and road roughness were analyzed, and its result showed that air suspension system and braking system need joint control.

第三，通过引入了描述单轮特性的Burckhardt的路面模型、Gim轮胎模型、客车制动器模型和时域路面不平度模型，并在此基础上设计了基于滑移率偏差和偏差变化率的ABS模糊控制器，对计及空气悬架和路面不平度影响的ABS进行了分析，进而说明了空气悬架系统与制动系统进行联合控制的必要性。

Analysed from 3 respects here disturb gravitation is right ballistic influence, imitate result makes clear, it is the long-range missile of 10000 Km above to cannon-shot, disturb the influence of gravitation can cause those who exceed the 10-5m S-2 of × of placement deviation;5 of 1 Km to disturb gravitation systematization deviation has apparent effect to missile point of fall.

这里从3个方面分析了扰动引力对弹道的影响，模拟结果表明，对于射程为10000 km以上的远程导弹，扰动引力的影响会造成超过1 km的落点偏差；5×10-5m s-2的扰动引力系统性偏差对导弹落点有明显影响。

Blasthole deviation is composed of three distinct components:collaring, alignment and trajectory deviation.

炮孔偏差严重影响采矿企业的经济效益，过大的偏差造成的不利影响是很明显的，如产生不良的爆破块度、回收率低和矿石贫化。

In the function of the transaction costs being concave function and more general market friction conditions, giving a algorithm of mean-absolute deviation model and the mean-average absolute deviation model under conditions.

在一般摩擦市场下交易费用函数为凹函数时，给出了均值—绝对偏差模型和均值—平均绝对偏差模型在此条件下的求解算法。

The original design of coaxial maximum deviation of 0.1mm, measured concentricity deviation after removal of about 0.4mm.

原设计中同轴度最大偏差为0.1mm，拆除后实测同轴度偏差约为0.4mm。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。