查询词典 constant

Those who hold the first opinion think that society is progressing and one should adapt oneself to the constant change.

那些持第一种观点的人认为社会在进步应该使自己适应不断的变化。

And the further development of reform and opening up needs our party's constant adherence to "Three Represents".

我们的开放、改革是很不容易的事情，胆子要大，要坚决。

It follows that every reversible adiabatic process is one of constant entropy, and may be described as isentropic.

可见可逆绝热过程都是熵不变的过程，可以把这种过程叫做等熵过程。

If n＝,then pvκ＝ constant, that is adiabatic process

当n＝ 时，pvκ＝常量，即为绝热过程

A If two differentials d s and dX are zero, then dX ' has to be zero too. Since d s = 0, we have s = constant, the it is a reversible adiabatic process →.

对於一个系统有两个以上的独立变数时，由於热力学第二定律，及温度是不同状态方程式中共用的变数，所以也是可积分的。

It is pointed out that the heat capacity of a polytropic process is not certainly a constant, and that the adiabatic process can not be regarded as a special case of polytropic process.

状态方程为 p Vn=c。定义 2 [4 ] 理想的等温过程、绝热过程都是难以实现的。气体状态变化时，总是和外界进行部分热交换，实际过程介于上述两个理想过程之间。

This paper presents a simple method for measuring gas adiabatic constant by use of simple harmonic oscillation .

本文介绍了一种简单的利用简谐振动现象测量气体的定熵指数的方法。

The design of the main features of constant temperature and the temperature is adjustable.

本设计的主要特点就是恒温以及温度可调。

Based on varying process of generator terminal parameters after excitation fault, shortages of excitation protective principle of static stability boundary and asynchronous impedance boundary are analyzed. It proposed that excitation fault research relates to large-disturbance stability. Because dynamic power-angle character of generator after excitation fault is non-sinusoidal, there are differences between dynamic power-angle character and static state power-angle character. So it isn't ideal to protective operation result based on small-disturbance stability and static stability boundary criterion. At the same time, it proposed that asynchronous boundary impedance criterion is a constant reactive power circle moving adown j Xd′. It can ensure complete loss-of-excitation generator measuring impedance enter into the circle, but can't ensure the other condition measuring impedance including impossible losing synchronism enter. So loss-of-excitation protection would be maloperation when system voltage drops short and recovers or generator rejects load.③Based on stability principle, it puts forward setting conditions and calculation method of generator loss-of-excitation protection by direct measuring power-angle.

以励磁故障后发电机端的相关参数的变化为基础，通过对以静稳定边界和异步阻抗边界作判据的两类三种现行励磁保护在原理上存在的缺陷分析，发现：励磁故障是一个大干扰稳定性问题，励磁故障后的发电机的动态功角特性与静态功角特性有很大的差异，已远非正弦曲线，因此基于小干扰稳定性原理、以静稳定边界作判据的保护必然动作不理想；异步边界阻抗判据是一个下移j Xd′的等无功阻抗圆，它可以保证完全失磁后的发电机测量阻抗能进入该阻抗圆，但不能保证完全失磁之外的其它状态不会进入该阻抗圆，因此在系统电压短时下降或发电机突然甩负荷等情况下可能启动该保护使之误动。

First, you will establish an adversarial relationship with the market that takes you out of the constant flow of opportunities.

第一，你和市场建立了敌对关系，错失持续一致性的机会。

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。