她坚信阶级制度恒定不变。
就假定保持a恒定不变。
首先，a是恒定不变的。
电极间的压力可调并恒定不变。
容器中的压力保持恒定不变。
在稳定流动中，质量通量是恒定不变的。
在稳定流动中，质量通量是恒定不变的。
我们也保持a恒定不变。
绝不是一个恒定不变的概念，而是一个变动着的历史性概念。
They are not an unchangeable concept but a moveable one with history.
和光速或电子的质量不同的是，人类的脑力并不是恒定不变的。
Unlike the speed of light or the mass of the electron, human brain power is not an eternally fixed constant.
水是人体的主要构成物质，人体每天所需要的水量是恒定不变的。
Water is the main component of the human body, and, in any individual, the body water content stays remarkably constant from day to day.
同时，当冲击速度恒定不变时，我们也观察到了相同的失效模式。
Meanwhile, the same failure modes are found with the constant impact velocity.
首先发布的是狭义相对论，它的基础是对于任何一个人来说，光速是恒定不变的。
Special relativity came first and is based on the speed of light being constant for everyone.
对于不可压缩的流体来说，流管中的质量通量和体积通量都是恒定不变的。
For incompressible fluids, both the mass flux and the volume flux are constant in a tube of flow.
是的，如果你想这样做，也可以用这样的方式改变，那就是保持第三条边恒定不变。
Ah, yes, if you wanted to, indeed, we could also change things in such a way that the third side remains constant.
而它们中的一些保持恒定不变，因变量按某种自然的方式变化，从而维持约束条件。
Some of them are held fixed, and then some dependent variable does whatever it must so that the constraint keeps holding.
笔者设计的恒光路系统通过对光路进行补偿，而使加工过程中光路长度恒定不变。
The constant light path system is designed to make the length of light path in the process of machining unvarying by means of equalizing it.
大自然恒定不变的稳定性，和我们自身经久不息的变化比起来，一定有着同样的效果。
The fixed and constant immobility of nature , in comparison with the continual change which goes on within us , must have the same effect.
这篇报告描述了某一个人为假定的自然界的基本物理常数，似乎并不是一直保持恒定不变。
The report describes how one of the supposed fundamental constants of Nature appears not to be constant after all.
对发达国家，新兴国家的经济危机研究报告显示，房价周期与银行破产之间的关联恒定不变。
Research into financial crises in developed and emerging markets shows a consistent link between house-price cycles and banking busts.
列提纲的具体技巧会根据文章的写作要求、体裁和字数而不同，但依然存在一些恒定不变的因素。
Tips for paper outline may vary in accordance with the discipline, type of paper and amount of work, but some things just don't change.
在土体性质相同且注浆压力恒定不变时，灌注桩桩端孔水平向和竖向位移随桩长的增加而减小。
The Vertical and horizontal displacement of ending hole are both decreased with the increase of pile length when the soil and grouting pressure is constant.
使用者原本可以依赖恒定不变的菜单来掌握在屏幕上的方位，菜单的改变彻底冲走了这种依赖感。
Users depend on the permanency of menus to help keep them oriented on the screen. Changing the menus bleeds away this reliability.
但由于光纤受力后会产生光弹性效应，导致折射率变化，所以理论上光纤性能也不是恒定不变的。
However, the force will be formed fiber photoelastic effect, leading to refractive index changes, so in theory, optical fiber performance is not constant.
麦克斯韦方程中有某些特性是恒定不变的——磁场强度、电位移场以及描述电磁场电通量的坡印廷矢量。
Maxwell's equations conserve certain properties-the magnetic field intensity, the electric displacement field and the Poynting vector that describes the electric flux of an electromagnetic field.
也有些人认定一种风格后，就将该风格作为他们牛活小恒定不变的一部分，不管这种风格是流行还是落伍。
Some people adopt a style that becomes indelibly associated with them and wear it regardless of whether it is currently fashionable.
尼尔森(Nielsen Online)做了很多工作来衡量网络通信的水平，并声称这些数字全年保持恒定不变。
Nielsen Online does a great deal of work in measuring levels of Internet traffic, and has stated that these Numbers have been constant for a full year.
他将风力公式应用到他的模型中，并假定树枝受到风力作用而断裂的概率是恒定不变的，据此他推导出了达·芬奇公式。
When he plugged that wind-force equation into his model and assumed that the probability of a branch breaking due to wind stress is constant, he came up with Leonardo's rule.
他将风力公式应用到他的模型中，并假定树枝受到风力作用而断裂的概率是恒定不变的，据此他推导出了达·芬奇公式。
When he plugged that wind-force equation into his model and assumed that the probability of a branch breaking due to wind stress is constant, he came up with Leonardo's rule.
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