The stadium roof structure is limited on many aspects, such as structure disposal, architecture form and so on.
体育场挑篷结构由于其自身的特性,在结构布置、建筑形式等受到很多限制。
Some people prefer to group their related selector elements together such as structure, links, lists, headings, and so on.
有的人喜欢将相关的选择器元素集合在一起,例如结构,链接,列表,标题,等等。
Drawing used to make final decision with basic mould messages such as structure, operation, main dimension, special requirements and so on.
具备模具结构、运作、主要尺寸、特别要求等,定案会议用图纸。
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。
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