无误差

The passive tracking dynamics is modeled by the turn rate, and the basic steps of the nonlinear particle filter are discussed. According to constraint conditions including the terrain data and the maneuvering capability of the target, outrange particles are discarded during prediction and update steps, and the distribution and the weight of particles are adjusted. The performance and the RMSE are analyzed by comparison simulations with the unconstraint particle filter.

使用转弯率概念建立了被动跟踪模型，阐述了非线性粒子滤波的基本过程；通过设定地域和机动性能约束条件，抛弃约束外粒子，并对粒子分布和权重进行调整，利用CPF进行了目标跟踪仿真实验，与无约束的粒子滤波跟踪进行了对比，分析了轨迹跟踪性能，比较了跟踪误差。

Based on the local synthesis theory, tooth contact analysis and precontrol method can only ensure that spiral bevel gears have perfect contact behavior without load; the loaded contact behavior, however, is unsatisfactory.

基于局部综合理论的弧齿锥齿轮齿面接触分析和接触性能预控技术可保证弧齿锥齿轮在无载时具有较理想的接触区域和传动误差，但无法保证其加载接触性能。

The results of surface dose rate determined with lithium fluoride thermoluminescent dosimeter chips in water-organic glass phantom and air had no obvious difference and the surface dose rate and its uniformity,(3.46±0.011) and (0.178±0.15)nGy/h*107Bq were obtained.

用LiF热释光片在水-有机玻璃体模及空气中，分别作125I眼科巩膜敷贴器的表面剂量测定，结果在误差范围内无明显区别，得到的最终表面剂量及其均匀性分别为：(3.46±0.01)、(0.178±0.15)nGy/h*Bq。

The effect of coexisting materials was studied, and they had no apparent disturbance.

实验表明，废水中常见离子对测定结果无明显干扰；测定的相对误差。0%，回收率为99%~104%。

Even the most precisely conducted experiments offer no hope that the results can be obtained without any error.

即使进行的是最精确的实验，也没有希望获得无任何误差的实验结果。

Even the most precisely conducted experiments offer no hope that the result can be obtained without any error.

即使是最精确的实验，也没有希望获得无任何误差的实验结果。

Even the most precisely conducted experiments offer no hope that the result can be obtained without any error.

即使是最精确的实验，也没有希望获得无如何误差的实验结果。

Even the most precisely conducted experiments offer no hope that the result can be obtai ned without any error.

即使是最精确的实验，也没有希望获得无任何误差的实验结果。

At the same time, PN code telemetering is the main method in space telemetering with its various advantages.

同时，伪码测距具有无模糊距离大、测量误差小、发射机效率高等优点，是深空测距的主要方式。

While by introducing the spherical simplex UT, a better-behaved sigma point selection strategy, the number of sigma points required to the same transformation accuracy can be dramatically reduced, and accordingly, the computation burden can be avoided.

在有陀螺模式下，设计了基于误差修正罗德里格参数的SUKF姿态估计算法，在计算过程中同时能够保证四元数始终归一化。在无陀螺模式，基于MRPs的姿态表示和卫星刚体动力学方程，实现了SUKF姿态估计算法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。