山谷在这条河附近是处于最低位置。

The valley bottomed out by the river.

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深蹲至最低位置，脚跟贴紧地面，背部挺直。

Squat down as low as you can, keeping your heels on the ground and your back straight.

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当综框分别处于最高和最低位置时，梭口处于全开状态。

When the harnesses are in their maximum up and down positions, the shed is said to be fully opened.

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In terms of picking a Lewis structure that's going to be the lowest energy, what you want to do is put the atom with the lowest ionization energy in the center of your atom.

为了挑选一个具有,最低能量的路易斯结构，你需要把电离能最低的原子,放在最当中的位置。

麻省理工公开课 - 化学原理课程节选

At some point you're going to hit a well here, which is the point where it's most stabilized or at its lowest energy.

直到某一时刻，你会到达这个势阱，也就是体系最稳定,或者说能量最低的位置。

麻省理工公开课 - 化学原理课程节选

Often a good thing to start with is to put the lowest ionization energy atom in the middle, and if you don't have charge separation then go with that structure, but if you do find you have a lot of separation, such as the case in negative 2, positive 2, and minus 1, then you want to say wait a second, this is really bad in terms of formal charge, let me go ahead and see what other options I have here.

通常一开始把电离能最低的原子,放在中心位置就很好了，如果你发现电荷没有分开,那么这个结构就没问题了，但是如果你发现有很多分开的电荷，比如这种情况，有负二，正二和负一，那么你会想要说等一下，从形式电荷来看这很不好，让我去看看其它可能的选择。

麻省理工公开课 - 化学原理课程节选