查询词典 backward

Because the diffusive term is discretized with divided forward difference or divided backward difference according to the sign of convection velocity, these methods keep first order accuracy for diffusive term.

3.2考虑规则网格上的一维和二维定常型对流占优扩散问题，离散方法采用了有限体积方法及普通的有限差分方法，基本离散思想是将对流项提高到二阶精度，扩散项则根据对流速度的方向决定采用向前或向后差商离散。

Those equations are dispersed in space by iso-parameter elementmethod and in time by using backward difference. A numerical simulator is established byFortran, the ideas of high part make the of structure program clear, maintain easy, calculationeffective.

在此基础上利用Fortran语言编制了有限元方法的油藏模拟器，采用等参元对渗流方程在空间上离散，采用向后差分在时间上离散，线性方程组的求解采用变带宽高斯消去法，该方法充分利用刚度矩阵呈条带状和其对称性的特点，大大减少了所需存储空间。

Change saline industry at western country fluorine relatively for, our country fluorine changes technology of saline industry existence dimensions of difference of quality of backward, product, enterprise difference of small, benefit, pollution serious, management does not have the blemish such as foreword.

相对于西方国家氟化盐工业来说，我国氟化盐工业存在技术落后、产品质量差、企业规模小、效益差、污染严重、治理无序等缺陷。

All sorts of inland river that have at that time from Guangdong carry shipping to look, because scientific guiding and management are lacked on boat type development, let things drift, so although have a few better ships type, but quite all sorts of one part is major even carriage shipping is dated and backward, line difference, draft is late, boat engine paddle does not match, speek of a ship or plane is small, cost can be high, economic benefits is poor, hang ship of paddle motor vessel especially.

从广东当时所拥有的各种内河运输船舶来看，由于在船型机型发展上缺乏科学的引导和治理，放任自流，所以虽有一些较好的船型机型，但相当一部分甚至大部分各种运输船舶都陈旧落后，线型差，吃水深，船机桨不匹配，航速低，耗能高，经济效益差，非凡是挂桨机船舶。

Keep them in the dark - keep them backward is their solution.

保持在黑暗中他们-让他们落后的是他们的解决方案。

This solution is backward compatible with all current work units.

这个解决方案使用于以后的所有数据。

First, according to the performance index of the system, designs the mechanical entity and analyses the forward and backward solution about its motion pose and position.

本文主要完成了机械本体的设计、液压伺服系统的设计并建立了伺服控制系统的数学模型，对其仿真分析。

Revolution, can be move forward and backward, a good solution for material discharging.

旋转角度360度，可前翻、后仰，帮您解决任何倒料之角度问题。

The solution of a backward stochastic differential equation is a pair of process satisfyingwhere g is the generator, and ξ is the terminal condition.

倒向随机微分方程的解是一对过程满足其中g是生成子，ζ是终端条件。

The solution of backward and forward kinematics of flexible manipulator must be worked out while you develop a control system for the flexible manipulators.

本文介绍了一种应用双向映射神经元网络来实现柔性臂正、逆运动学计算的方法，利用神经网络输出的结果作为控制变量，来实现柔性臂运动学控制。

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％。