不精确性

For I must remark, Thrasymachus, if you will recall what was previously said, that although you began by defining the true physician in an exact sense, you did not observe a like exactness when speaking of the shepherd; you thought that the shepherd as a shepherd tends the sheep not with a view to their own good, but like a mere diner or banqueter with a view to the pleasures of the table; or, again, as a trader for sale in the market, and not as a shepherd.

我必须提请你注意，斯拉斯马科斯，如果你愿意回顾一下你前面所说的话，虽然你开始的时候要求以精确的旨意去定义现实中的医生，后来你在谈到牧羊人时却未能观察到类似的精确性；牧羊人在你看来，不是从他们自身利益的角度去看管羊群的，而是从类似就餐者或晚宴食客想让餐桌充满愉快的角度去看管羊群的；或者，还可以被看作集贸市场上的羊群交易者，而不是被当作牧羊人来看待。

This method doesn't need beam deflection device and can change the reference beam incidence angle with mechanical movement platform only. And the accuracy of system is not getting lower.

这种方法不需要光束偏转器件，只需要机械运动平台，仅通过平台的移动，就可以实现参考光束入射角度的变化，而且寻址的精确性并未降低。

The phase of optical wave can be recovered by the intensity transport equation under the paraxial approximation For the optical system with diffraction limit, it is difficult to get the boundary radical slope of phase and sample in the circular domain boundary when using the intensity transport equation to recover the phase, consequently, we reviewed an algorithm mentioned in the reference ［4］, namely, the equation, computation domain and boundary condition are changed, then the phase is reconstructed by the multigrid method and corrected at last Moreover, the experiment system is set to testify the algorithm, and the recovered phase from the intensity data detected by CCD is compared with the result from phase retrieval algorithm, it is found that the phase reconstruction error can reach 017 λ in the case of non-uniform intensity distribution, as a result, the method is suitable for the phase recovery with low wavefront sensing accuracy.

在傍轴近似条件下，可以利用光强传播方程对畸变波前进行相位恢复。对于衍射受限的光学系统，很难获得相位的边界径向斜率值作为边界条件，此外，要获得精确的圆域边界采样值也并非易事。为了克服上述困难，进一步研究了相位恢复改进方法，即改变了方程的表示形式、计算区域和边界条件，并用多重网格法进行求解获得重构相位，最后再将其修正。为了验证算法的精确性，搭建了实验系统对算法进行实验验证，将由CCD探测的光强分布进行计算得到的相位分布与相位恢复算法的结果进行比较，证明在光强分布非均匀的情况下，该方法恢复的相位均方根误差能够达到017 λ，可以适用于波前传感精度要求不是很高的相位恢复。标签自适应光学相位恢复相位修正光强传播方程 adaptive optics phase retrieval phase correction intensity transport equation

There's seldom work carried on dealing with the contradiction between the vague and uncertain requirements of end-user and the precise and deterministic process in service composition.

服务组合中端用户的模糊和不确定的需求与服务组合过程的精确性要求之间存在着矛盾，而几乎没有相关的工作考虑了这个问题。

Some occasions of the institutional formation proves the necessity of regulation an d decision-making. It also introduces five critiques: immorality, incomparability, immeasurability, inaccuracy and inconsistency.

通过以成本为基准的评估技术制度化中的偶然性成分说明其应用于规制和决策必然性的一面，并介绍了来自五个方面的质疑：不道德性、不可比较性、不可度量性、不可精确性、认识分歧性。

Finally, genetic algorithm is used to optimize the rules and reduce the rule induction from quantitative data.

最后利用遗传算法对所得规则进行优化，在不降低精确性的前提下，减少规则数。

If literature is nebulous or inexact; if it is impossible to determine, with scientific

如果文学是模糊不清且不精确的，如果不可能用科学的精确性来确定一个艺术作品的价值或者

With position set, the operator is not required to position the fixture on the machine table with extreme accuracy.

对于自动位置调节的定位，操作员不需要在机器桌面上对夹具进行极度的精确性定位。

However, self-motion movement's power by unequal exercise.balance wheel uneven move at any moment , so mainspring acceptant power is not enough regular,and it will have a effect on movement's veracity.

而从动表芯是由不规矩的运动提求能源的，摇轮随时随地以不平均的方法活动，这样发条接收的力气就不够匀称，因而多多要影响到表芯的精确性。

The design of transplanter for rice growing in cupulate tray is the critical link in rice growing in cupulate tray technology,the design method is not mature,for exploring a new design method,having discussed neural network s serviceability in agriculture machinery mechanism design with the theoretical basis of self-organizing feature mapand the back-propagation network,the integrated SOM-BP nerve network model is applied in the field of transplanter s critical mechanism design for rice growing,al...

水稻钵育栽植机的设计是实现水稻钵育栽培技术的关键环节，区别于传统的水稻栽植机其关键部件的设计方法还不成熟，在理论研究方面还不完善。为探索新的设计方法，论述了神经网络算法对农业机械设计的适用性，以自组织特征映射网络SOM 和误差反向传播网络BP为理论基础，将SOM-BP集成神经网络模型应用于水稻钵育栽植机关键部件设计领域，建立神经网络模型，通过集成网络训练，得到设计结果。验证了SOM-BP神经网络在农业机械机设计中的正确性和精确性。

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％。