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The precondition of the above method is that the site relationship among the marks must be changeless at the two reference frames, but this relationship will be destroyed by the computational error.

实现上述目标位姿测量方法的前提条件是要保证该组特征点在不同坐标系下，其位置关系相同，但计算误差的存在却破坏了这种固定的位置关系。

Fourthly, it was easy for primary school children to occur many types of computational estimation error and the typical error in different grades was also different.

4小学儿童在估算时易发生多种错误，而且不同年级均有一些典型错误。

This model eliminates the computational error of the inertia force obtained by static equivalent principle in conventional two-mass model, and can obtain dynamic characteristic data effectively and accurately.

为降低多缸发动机曲柄连杆机构的振动，根据多刚体动力学理论，建立了参数化的曲柄连杆机构动态仿真模型，克服了传统的双质量模型中采用惯性力静力等效法的误差。

Combining the specific knowledge of computational Model-minimum Error Correction for the haplotype reconstruction problem,an improved particle swarm optimization was proposed to solve the haplotype reconstruction problem.

结合单体型装配问题的计算模型—最少错误纠正模型的特定知识，提出了一种求解单体型装配问题的改进粒子群算法。

It is shown that as the deviation of the interval factors of the design parameters are similar and close to unity, the computational error of the fast methodology are determined by the dispersion between the interval factors; and the error comes up to zero if all the interval factors are equal.

当诸参数的变化区间相对其均值的离差较小时，区间结构矩阵特征值的计算精度主要由各区间因子的差值大小所决定；且当各区间因子的差值为零时，误差亦为零。

Simulations show that when the signal to noise ratio is greater than 0dB, the inverse model algorithm converges rapidly and stably with computational error being within a minimal bound.

仿真结果表明在信噪比大于0dB时，该自适应逆模型算法收敛迅速、稳定，计算误差保持在较小的范围之内。

The other is called Householder transformation method, in which the matrix of inconsistent equation group is orthogonalized and triangulated using Householder transformation, and then the Zernike coefficients can be worked out by using a backsubstitution technique. It is proposed for the first time. Being a method that can avoid the computational error effectively and can be easily performed, it has proven to be a feasible and efficacious algorithm.

特别是第二种方法由本文第一次提出，它避免了构造法方程组，从而避免了以前的方法因构造的法方程组出现严重病态而引入的计算误差，并且易於编程，因而是一种比较理想的实现Zernike多项式拟合的算法。

One research institute has integrated GEN2000 into its infrared simulating package, and computed spatial distribution of infrared properties from one real high-speeded engine exhaust system, the results were compared with experimental data. Through comparation we can see: relative error between computational and experimental results is less than 30%, the spatial distribution of infrared properties is basically accord.

某研究所将本文设计的计算程序GEN2000合成到其红外模拟软件包中，计算了某型实际发动机高速排气系统红外辐射特性的空间分布，并与发动机试车实测数据进行了分析比较，结果表明：计算结果与实测结果的最大相对误差不超过30%，红外辐射的空间分布基本一致。

Simulation result for an actual boom shows that the incremental equations, derived from infinitesimal increment, can be used widely, and the computational error makes a slightly trajectory deviation from reference straight line, which would not influence the final position, which is important in actual situation.

针对某实际钻臂的仿真结果表明，增量算式尽管是在微变情况下推导的，在偏差较大的范围内应用时其计算误差对定位过程影响不大，体现在钻臂轨迹于隧道断面的投影不是直线，同时不会影响最终的控制精度，可以用于实际控制。

The simulation result for an actual boomshows that the incremental equations, derived from infinitesimalincrement, can be used in large variable range, and the computational error makes a slight trajectory deviation from reference straight linewhile makes no final positioning error, which is important in actualsituation.

仿真结果表明，本文提出的算式是正确的，控制系统结构是合理的；增量算式尽管是在微变量情况下推导的，在大的运动范围所带来的误差不大，适于工程应用；实现了双三角臂运动驱动的动态解耦。4。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。