计算误差

From this came their reckoning of time, and a calendar that accurately measures the solar year to within minutes.

他们从这里发展出对时间的计算，一部历法能够精确地量度太阳年到一分钟误差之内。

That will be a great error to determine solid fraction with liquidus and solidus as used in the previous work.

以往常用的根据液固相线来确定固相分数的方法会给模拟计算带来很大误差。

Spherical grinding error analysis is mainly about influence of geometric precision of machine on precision of graund parts, the influences of vertical, horizontal and angle on the spherical degree errors were researched respectively, and the specific calculation formulas were deduced.

主要针对机床几何精度对磨削球面精度的影响，分别从上下、左右、角度三个方面对球面度误差的影响展开了研究，得出了具体的计算公式。

The scheme can effectively correct the static errors in the magnetic tracking system. The employment of spherical coordinates significantly reduces the calculation complexity in calibration.

此方法能够有效地校正电磁跟踪系统中的静态误差，通过应用球坐标系显著地降低校正计算的复杂程度。

By calculating Rytov index and Fried parameter of plane wave and spherical wave, relative errors between simulative and theoretical results of the five methods are compared.

通过计算平面波和球面波的Rytov指数和Fried参数，对比五种方案得到的Rytov指数和Fried参数与理论结果的相对误差。

A compensation method of ball radius in measuring an arbitrarysectional shape of spiral surface is introduced.

但由于螺旋面的扭曲及测头半径的影响，采用一股的平面曲线侧量方法对测头半径进行补偿和数据处理，求得的齿形其误差较大，很难满足要求；另外，对螺旋面任意截形的测量目前还没有一个通用的补偿计算公式。

Simulation proves that the new guided method is stable round shut down point and t...

通过仿真计算，证明该方法关机点附近导引稳定，导引引起的方法误差较小。

Two kinds of ways to compute the surface figure of optics mirror are presented in the terms of Zernike polynomials and standard surface equation.

论文提出并应用了两种光学反射镜镜面面型误差的计算方法：Zernike多项式拟合法及标准曲面拟合法。

The approach for gross error detection based on neural network is introduced. Compared with conventional approaches which are based on optimization technique and statistical methods, This method has the advantages of simpleness, fitting online use and dealing with nonlinear problem effectively.

初步研究了基于神经网络的显著误差侦破方法，该方法具有简单、计算量小和适于在线应用的优点，并且相对于传统的最优化和统计理论相结合的方法具有处理非线性问题能力较强的特点。

Computation result shows that the design thickness of subbase is 34 cm with H-6,it is 33 cm with MD-82,their relative error is only 3.03%,which indicates that the design method is correct.8 tabs,2 figs,16 refs.

计算结果表明，以H-6为设计飞机，下基层设计厚度为34 cm，以MD-82为设计飞机，下基层设计厚度为33 cm，两者相对误差仅为3.03%，说明此设计方法是正确的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。