What we've learned so far is as a first approximation, what we want to do is put the atom with the lowest ionization energy in the middle here.

我们之前所学的可以作为第一近似，我们要做的是把电离能，最低的原子放在中间。

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This first approximation model is an initial fuzzy model, so it can be introduced as a good initial structure of IT2FLS for further tuning in a subsequent process.

这个一次逼近模型是一个初始的模糊模型，可被引入作为优化调节it2fls参数的一个好的初始结构。

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Homogeneous spherical elastic earth model is the first approximation of the real earth in the approach to study the earth tide, this paper gives a numerical.

球状弹性均匀地球模型是地球的一级近似，本文给出计算该地球模型固体潮应力场的计算方法。

youdao

What we've learned so far is as a first approximation, what we want to do is put the atom with the lowest ionization energy in the middle here.

我们之前所学的可以作为第一近似，我们要做的是把电离能,最低的原子放在中间。

麻省理工公开课 - 化学原理课程节选

It's always a good first approximation, because you need to start somewhere in terms of drawing Lewis structures, but then if you go and figure out the formal charge and you just have lots of charge separation or very high charges, like a plus 2 and a minus 2 and a minus 1 all different places in the atom, what it should tell you is maybe there's a better structure.

它总是一个好的第一近似，因为在画路易斯结构的时候,你总需要一个起点，但是如果你在算出形式电荷之后,发现有很多电荷分开了,或者说有很高的电荷，比如有一个正二，一个负二，还有一个负一1,在原子的各个地方，这应该就是在告诉你,或许还有一个更好的路易斯结构。

麻省理工公开课 - 化学原理课程节选