If the path corresponds to a file, this function checks whether file size equals 0.
如果路径与文件对应,此函数将检查文件的大小是否等于0。
Suppose we were to graph a household's consumer spending as a function of cash-on-hand, which equals current income plus liquid assets, holding constant expected future income.
假设未来预期收入保持不变,画一个以家庭消费与库存现金的函数图---库存现金等于目前的收入加上流动资产。
So if you have a certain number of neutrons produced and that equals the number of losses your K effective would be one which is the desirable function.
所以,如果你有产生的一定数量的中子,那等于损耗的数量,你的K有效,会是一个很好的功能。
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。
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