查询词典 numeric error

Based on analyzing performance of gear machining system and mechanism of machining error, the description method of machining error was presented for gear machine. According to the performance-driven design concept and generalized multi-body certainty theory, driven by gear machining error, machining error fine model and system integrated design method of CNC gear shaper was studied.

本文在分析齿轮加工机床的系统性能和加工误差产生机理的基础上，提出了加工误差描述方法；以&性能驱动设计&为基本理念，以齿轮加工误差为驱动，以广义确定性多体系统为理论基础，研究了数控插齿机加工误差精细分析和系统集成设计方法。

For total absorption coefficient at 443 nm (a443), the root-mean-square-error is 0.046 in the South China Sea, with an averaged percentage error of 7.9%, and averaged error in log scale close to 0. For coastal waters off Fujian, RMSE, an averaged percentage error and δ are 0.194, 30.6%, and -0.167, respectively.

对于443 nm的总吸收系数（a443 ），南海的对数均方根误差为0.046，平均相对误差为7.9%，对数平均偏差为0；福建沿岸水体的对数均方根误差为0.194，平均相对误差为30.6%，对数平均偏差为-0.167 。

The quantizing error, linear error and differential linear error of an A/D converter were deduced, after that the error model of synchronous sampling, asynchronous sampling and quasi-synchronous sampling algorithms used in power measurement wens build in condition that A/D was not perfect.

建立了该两种乘法器的物理模型，数学模型和误差仿真模型，全面地分析了各种参量对其交流功率测量的原理误差和仪器误差的影响，并给出了定量的结果。

According to the engage relation of cycloidal gear with the pin wheel in type 2K V transmission,the formulas of relationship between transmission precision and mesh error of the actual profile of gears are established; then a synthesis mesh error is proposed as a quantified concourse of error to judge the transmission error,therefor the machining tolerances relative to transmission precision have quantificational relation,which is the basis for machining high precision 2K V drives with cycloidal gears.

根据 2K—V型传动中摆线轮与针轮的啮合关系，建立了实际齿廓的啮合误差与传动精度关系的计算式，并提出了综合啮合误差这一量化误差集合来评判传动误差，使得加工公差与传动精度有一个定量的关系，从而为研制开发高精度摆线齿 2K V型传动的加工制造提供了依据。

Retval and errmsg will be error code and userfriendly error message which can be thrown to enduser from the frontend application OR Pass the retval and error message to application error handler routine.

retval和errmsg将错误代码和用户友好的错误信息，可为最终用户抛出从或通过前端应用retval和错误信息，应用程序错误处理例程。&/页&

Making use of the space vector method, this article sets up two coordinate numeric control grinding motion model of elliptic taper piston, and researches on the law of error compensation for the systematic motion after dressing grinding wheel.

用空间矢量方法建立了椭圆锥体活塞的两坐标数控磨削运动模型，研究了砂轮修整后应对系统运动进行的误差补偿规律。

The1Hz~lMHz input measured pulse signals of the digital frequency meter can be used for measuring frequency, period, pulse width and duty ratio,etc.The test results stably display 3 seven-segment numeric tubes, and the measuring ranges may be switched over automatically. The measuring error is equal to or less than 0.1％.

该数字频率计的lHz～1MHz输入被测脉冲信号具有频率测量、周期测量、脉宽测量和占空比测量等多种用途；其测试结果由3只七段数码管稳定显示，测试量程可自动切换、测量误差小于等于0.1％。

The lack of preservation of range makes conversions between numeric types error prone.

由于缺乏对范围的保护，所以数字类型间的转换很容易出错。

The Southwell zonal wavefront reconstruction model was applied to some terms of Zernike polynomials by numeric simulation, and the error caused by data precision of wavefront-reconstruction-matrix is studied.

采用Southwell区域法波前重构模型对泽尼克多项式的前几项进行了波前重构的数值模拟，研究了由重构矩阵存储精度原因而引起的波前重构误差。

In order to ensure the reasonable modeling method for thermodynamics model, by adopting these four kinds of models and the reference model, the typical thermodynamics characteristic in drum-the dynamic process of"false level"were dynamically simulated, the results of simulation indicate: The modeling method of considering the changing rates of pressure and volume simultaneously is more reasonable, it's simulation result can be consistent with the result of the reference model, and the numeric error is within±5%, so, this method can be used to build thermodynamics model of drum level.

为确定合适的热力学模型建模方法，采用这四种模型和参考模型，对汽包中典型的热力学性质-"虚假水位"现象的动态过程进行了动态仿真，结果表明：同时考虑汽包体积变化率和压力变化率的建模方法，其动态仿真结果完全可以正确地跟踪参考模型的仿真结果，并且数值误差在5%以内，故该建模方法可以用来建立汽包水位热力学模型。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。