This elementary approximation starts off with constant function, and is feasible and efficient.

这个初等逼近是从常值函数开始的，并且是可行的和有效的。

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In the last chapter we study the asymptotic behavior of solutions to the model when the signal function is a nonlinear constant function.

第三章研究信号函数为分段常数非线性函数时模型解的渐近行为。

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If you have a quantity which is constant over any closed path, that quantity is a thermodynamics state function.

如果有一个物理量,对任何闭合回路积分是常数，这个物理量就是一个热力学态函数。

麻省理工公开课 - 热力学与动力学课程节选

It's a state function, so we're at constant temperature and pressure, and now we want to consider some chemical change or a phase transition or you name it.

这就是态函数，我们处于恒定的温度和压强之下，然后考虑某些化学变化或者相变,或者你想考虑的东西。

麻省理工公开课 - 热力学与动力学课程节选

So, first, if I point out when l equals 0, when we have an s orbital, what you see is that angular part of the wave function is equal to a constant.

首先，如果ｌ等于０,那就是ｓ轨道，你们可以看到,它波函数的角度部分是一个常数。

麻省理工公开课 - 化学原理课程节选