差

In winter experiment,'A33' Pensacola Bahia grass has the best chilling tolerance grass, followed by Zoysia grass,'Sahara' Bermuda grass, Centipede grass, common Bermuda grass and Carpet grass are close in chilling tolerance, and tropical Carpet grass has the worst chilling tolerance.

次试验结果虽然有些出入，但大致的趋势仍然一致，即在暖季草种中，以Pensacola百喜草和日本芝草耐寒性较佳，其它草种耐寒性虽相近但仍有差存在，次试验皆显示地毯草耐寒性最差。

A one-sided difference approximation is used for convection terms and a second-order central difference approximation for diffusion term.

二阶一边差分逼近用于对流项的离散，二阶中心差分逼近用于扩散项的离散。

During the process of numerical approximations, the difference formula of time transient terms, and the central/upwind difference expressions for acquiring boundary value are chosen.

在方程离散过程中，给出了时间瞬态项的差分格式以及求解边值的中心和上风差分格式。

Most of them rely on the central limit theorem, that states that the mean of N independent realizations of a random variable with mean u and variance d^2 approaches a normal distribution with mean u and variance d^2/N .

在蒙特卡罗评估框架内大量的各种选择性算法已经被推出，他们中的大部分依赖于中心极限定理，一个均值为U方差为D^2的随机变量的N次独立实现的平均值接近于一个均值为U方差为D^2/N的正态分布。

The situation after the first M step is shown in plot, in which the mean of the blue Gaussian has moved to the mean of the data set, weighted by the probabilities of each data point belonging to the blue cluster, in other words it has moved to the centre of mass of the blue ink. Similarly, the covariance of the blue Gaussian is set equal to the covariance of the blue ink.

图显示了初始的 E 步骤，用红色表示用红色 component 产生的后验概率，蓝色也是同样的情况，还有一些不太确定的点是用紫色显示的，在图中蓝色的高斯的均值已经移到了蓝色数据集的中心上，类似的，蓝色高斯的协方差设为蓝色点的协方差。

Then the location characteristic of the FDOA curve and the error of the FDOAlocation have been analyzed and simulated respectively.

并对到达频差曲线的定位特性和到达频差定位的误差进行了分析和仿真。

Corrected for both chromatic and spherical aberration, as a lens.

复消色差的矫正色相差和球面像差的，如镜头

The normalized efficiency T of thermal power dispersion and normalized efficiency C of chromatic power dispersion of optical materials are introduced.

引入光学材料的规化热差系数T和规化色差系数C，得到对无热差光学系统设计的材料选择具有指导作用的T-C图。

The design process of the passive optical athermalisation was elaborated by an example. The result was analyzed with an optical design software. It shows that the design result meets the requirement of eliminating the thermal difference and chromatism at the temperature range of -40℃～+60℃.

最后用实例说明光学被动式无热化设计的求解过程，并通过光学设计软件对结果进行分析，说明该设计结果在-40℃～+60℃温度范围内均满足消热差和像差要求。

The coefficients for eliminating the thermal difference and chromatism of common infrared materials were described by Cartesian coordinates.

最后用实例说明光学被动式无热化设计的求解过程，并通过光学设计软件对结果进行分析，说明该设计结果在-40℃～+60℃温度范围内均满足消热差和像差要求。

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％。