类中的常数字段类似于全局或函数常数,不同的只是它的作用范围是该类,而且它可以用多个修饰符来指定其可见性和用法。
A constant field in a class is similar to a global or function constant, except that it is scoped to the class and it can have various modifiers governing its visibility and usage.
它们包含用于所有可作为该工具箱的一部分的常数、结构、宏、公共函数的定义。
They contain definitions for all the constants, structures, macros, and public functions available as part of the toolkit.
不要将常数定义成变量或函数。
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。
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。
n So the velocity is given by this product of the quantum number n Planck constant 2 pi mass of the electron time the radius of the orbit, which itself is a function of n.
速度是量子数,普朗克常数2π乘以轨道半径的值,它自身也是n的函数。
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