All climbers battle extreme conditions: Low temperatures.
VOA: special.2010.06.30
However, the thing to remember is, when you look at heats of reaction under those conditions it's all well and good.
相反,需要记住,当你需要知道反应中放出的热量时,这些量是很有用的。
And I didn't specify the conditions, but if we were to do this under ordinary chemical conditions of some, you'd say room temperature and pressure, right, they all happen spontaneously.
我并没有特别说明反应条件,但是如果我们在通常的化学条件下,实现这些化学反应,比如在室温和大气压下下,他们都是自发的。
And linguists have all of these conditions they say, "No language in the world works this way."
而语言学家们知道这些条件,他们会说"世界上没有语言会这样表达"
All cell membranes have these channels within them, and under their resting conditions sodium is moving from outside to inside, potassium's moving from inside to outside.
所有细胞膜上都有这种通道结构,在静息状态下,钠从细胞外流向细胞内,钾从细胞内流向细胞外
Therefore, what we have done now is, we can take all kinds of springs and we can calibrate the force they will exert under various conditions.
因此,我们现在能做到的就是,我们能处理各种各样的弹簧,我们能测出它们在不同的情况下,产生的力的大小
They got this miserable modern one with the sort of Vietnam like conditions that they have out there; it's raining all through the God-damned battle of Agincourt.
为了在现代世界重现当时的惨状,摄制组远赴越南,在阿金库尔战役中,该死的雨下个没完没了
let's take the step to the biggest set of conditions of all.
现在我们考虑最重要的一组条件。
Of course, they're all sorts of conditions under which a reaction could be wrong in the lab or outdoors or however, right. But this is the way we're going to define delta H of reaction.
当然,在实验室或室外,之类的环境中,在这些条件下,反应可能出错,但这是我们,要定义反应的△H的方法。
Some are going to reform and some are going to reform with the gene in, and some probably aren't going to reseal at all under the conditions that I've used.
有些质粒会自己合上,有些质粒会与DNA片段重组并合上,还有的在我提供的条件下,也根本合不上
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