law of combination of errors是什么意思

网络释义

用法例句

Photoelectronic length measuring system for steel pipe and error analysis;

钢管光电测长系统及误差分析

Ways of automatic pipe length measurement and its error analysis;

钢管自动测长的误差分析及解决

Discussion on Tobacco Cut Width Error of RC4 Cutter;

RC4切丝机切丝宽度误差分析

Errors Derived from Machine Compliance and Contribution to the Evaluated Values by Indentation Testing;

仪器柔度对压入法测试结果的误差影响与校准

The Sources of Errors and Solutions in the Numerical Control Process;

数控加工中误差的来源及解决方法

Calculations of Locating errors in Fixture Design;

夹具设计中定位误差的计算

By using the measurement indetermination,a mersurement error margin is used.

用测量不确定度来表示测量误差的方法,是科技交流和国际贸易的迫切要求。

This text explains to Xutuan coal mine west breeze well and main well a method,error margin for of run-through measuring analysis with anticipate.

介绍了许疃煤矿西风井与主井之间的贯通测量的方法、误差分析和预计。

Methods99 healthy student acted as volunteers for the test and the height of crutches was estimated with error margin of linear regression.

方法选择 99名健康学生为试验对象 ,其中男性 5 0名、女性 49名 ,用分散分析中的误差值预测腋拐长度及扶手高度。

An Analysis to Deviation of the Measurement of Copper Content in Jetfuel;

喷气燃料中铜含量测定的误差分析

This paper specifies the meaningfulness and measurement method of rotating machinery alignment and points out the main deviation factors of dial indicator alignment and its control method.

简述了旋转机械对中的意义和测量方法,指出了百分表对中法的主要误差因素及其控制方法。

Analyses are made on some major factors affecting twist deviations and the relevant estimations, with measures to narrow twist deviations suggested.

分析了几种引起捻度误差的主要因素和其误差估算方法 ,并提出了减小捻度误差的办法。

Analysis of tolerance characteristics of imitating arc with an cubic parameter line;

三次参数曲线拟合圆弧段的误差特性分析

Introduce a try to grind precision spherical crown, including its principle and method, discuss the possible tolerance and give a formula to control the quality.

介绍了为磨削高精度球冠所做的尝试,阐述了所采用的磨削原理、技术方案,讨论了加工误差,推导了控制球面轮廓误差的公式。

It pointes out three main reasons of produced tolerance are preparation and machining of sample,temperature control and tolerance of system itself after the tolerance occurred during Sharp impact of spiral welded pipe.

通过对螺旋焊管夏比冲击试验过程中产生的误差进行分析,指出误差产生的三个主要原因:①试样的制备;②温度的控制;③系统本身误差。