Plant says this definition, which first appeared in a 1930 ILO Convention Against Forced Labor, is still valid today.
VOA: standard.2009.08.21
if the Law of Inertia is valid for me, it's valid for other people in the same room at rest with respect to me.
如果惯性定律对我适用,那就对这屋子里的其他和我保持相对静止的人,也同样适用
So, hopefully that kind of clears up that question. And, of course, when the velocity actually is zero, this equation that the de Broglie has put forth is valid for anything that has momentum, so if something does not have any velocity at all, it actually does not have momentum, so you can't apply that equation anyway.
能回答你的问题,当然,如果速度真的是零的话,德布罗意提出的这个方程,只对有动量的物体成立,所以如果一个东西没有速度,它没有动量,也就不能应用这个方程。
Now, the argument is valid.
现在,这个论证是有效的
It's not a valid experiment if it has no chance of showing that my hypothesis is flawed.
如果根本没可能证明我的假设,是有瑕疵的,那么这个试验。
You have to be careful that this first law of Newton is not valid for everybody.
大家需要注意的是,牛顿第一定律并非所有情况都适用
But when you start writing programs, especially when we get to web-based stuff where you want -- to check the user's input -- is it valid, is it an email address, -- and all these different scenarios -- it's actually often useful to be able to just enumerate them or rattle them off using this switching construct instead.
但是当你看是写程序时,特别是当我们,使用基于网络的东西,你想要,检查用户的输入-,它是合法的吗?它是不是一个电子邮箱地址?,所有的这些场景-,实际上它常常是有用的,当你用枚举结构列举它们,或者用它来快速地来说出它们。
Yes, it's a wonderfully reliable test I'll test you today; I'll test you tomorrow; I'll test you next year; I'll test you the day you die; I'll get the same IQ score ? Is it a valid test?
是的,这是个非常可靠的测试,今天测试,明天再测试;,明年再测,到你死的那天再测;,得出的你的智商都还是一样,但这是个有效测试吗?
And the last thing we do for any of our structures to check them and figure out are these valid or not valid, are these good Lewis structures is to check the formal charge.
而为了检验任何一个结构是否有效,看它们是不是好的路易斯结构,我们要做的最后一件事就是检查形式电荷。
It is in fact syntactically valid.
这只是语法上说得通。
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