Same bond, symmetric bonds means equal energy, which means equal links.
相同的对称的化学键意味着相等的能量,相同的联系。
If every time I get the same acceleration, I'm convinced this is a reliable spring that is somehow producing the same force under the same condition.
如果每次都能得到相同的加速度,这个弹簧的可靠性就能令人信服,即它在相同的条件下能够产生相等的力
I've told you, if two vectors are equal, the components must match.
我说过如果两个矢量相等,那它们的分量必须都相同
You cannot have two vectors equal without exactly the same x component, exactly the same y component.
你不能说两个矢量相等,如果它们的 x 分量不完全相同,或者 y 分量不完全相同
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