恒定

They may be within the city or at such a distance that for all practical purposes they symbolize a constant direction. Such are isolated towers, golden domes, great hills.

这些路标可能在城市里，也可能离得很远，对于所有特定的目标来说，它们象征一个恒定的方向，诸如孤立的塔、金色的圆顶和大山坡。

By examining the displacement history of atoms around the void surface, we find that the radial velocities of the vertices along and perpendicular to the shock direction almost keep constant during the tensile process.

分析孔洞表面原子的位移历史，发现沿加载及与其垂直方向的孔洞顶点沿径向的速度基本恒定，由此提出了一个孔洞生长模型，可以解释孔洞增长的线性生长规律。

The car has been exposed to a lateral wind gust, with a variable direction, always orthogonal to the motion direction, with a constant velocity equal to100 km/h from moment t1 = 2.5 s to t2 = 5 s.

汽车被暴露了在侧向阵风，与一个易变的方向，总是正交对行动方向，与从片刻的恒定的速度均等to100 km/h t1 = 2.5 s对T2 = 5 s。

In this paper, the conductivities of double-distilled water and aqueous solution of NaCl, HOAc, C_5H_5N, etc. were determined in an elongated time period. It is found that the conductivity values of the solutions at certain temperature are not constant and change over time.

在封闭体系中，较大的时间尺度上二次水及NaCl，HOAc，C_5H_5N，苦味酸等溶液电导率在确定的温度下不再是恒定值，表现出持续变化。

The main works of this paper are as follows.First, according to the three-step method, 1-D unsteady flow model in river network is introduced. A new topological structure is presented to describe and store the topology information and data in river network ,which realises the connection between GIS and the numerical program of hydraulic calculating and turns the program into a universal one .A new formula of internal boundary conditions with double-recursion algorithm is deduced, and the relationship of recursive coefficient between imaginary channel length and non-imaginary channel length is presented ,which makes sure that the model can comprise the numerical simulation of the internal boundaries such as side pipe outflow ,barrage, slice gate and drainage pump station.

主要工作如下：(1)根据三级解法建立了一维河网非恒定流模型，并提出了一种新的数据结构来描述和储存河网拓扑信息，方便了GIS平台和数值计算程序的衔接，实现了三级解法程序的通用性；从河段方程组出发，根据虚设河段法推导出了内边界条件的双追赶法公式，指明了虚设河段的追赶系数和非虚设河段追赶系数的关系，从而使模型可以模拟集中旁侧入流、堰、闸、水泵等内边界对行洪过程的影响。

For the sake of the convenient application of the unsteady flow simulation of drainage system, the block diagram-oriented dynamic simulation methodology for the drainage pump station is studied based on the SIMULINK platform.

为了便于排水系统非恒定流模拟技术的应用，该文在SIMULINK平台上对面向结构图的排水泵站可视化仿真途径进行了探讨。

Closed-loop control system to adapt to changes in water adjust online implementation and ensure the end of pipe network constant stress there is no artificially adjust the lag phenomenon.

闭环控制系统适应水量的变化，实现在线调整，保证管网末端压力恒定，不存在人为调整的滞后现象。

The teeth of the notched wheel "escape"at a regular interval, keeping the time.

当轮子上的齿以恒定的时间间隔&逃离&轮子时，大致就可以把时间估计出来了。

In the face of constant brutality, American airmen held prisoner during the Korean War acted with great courage.

在恒定的残酷面前，美国空军囚犯在朝鲜战争期间行动了以伟大的勇气。

My happiness on in Christ, with god with in the blessing, forever allis constant.

我的幸福就在基督里，与神同在的祝福，永远都恒定。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新