这里的这个，因为处在一个较高的能级，被叫做反键分子轨道能级。

And this one here, because it is at a higher energy is called antibonding molecular orbital.

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吊车轨道的材料由于其含碳量较高， 强度大， 可焊性较差， 焊接时容易产生裂纹， 因此要严格按照工艺执行。

Material for rail of crane is of strong strength because of high carbon content, but of poor weldability, which makes more cracks. Strict technique is required in such welding.

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结果表明，在所有量子化学多数中，只有最低空轨道能量（ELUMO）与最低抑菌浓度（MIC）值的相关度相对较高。

Correlation analysis results were shown that correlation coefficient between MIC and ELUMO was relatively high among quantum chemistry parameters of antimicrobials.

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And this one here, because it is at a higher energy is called antibonding molecular orbital.

这里的这个，因为处在一个较高的能级,被叫做反键分子轨道能级。

麻省理工公开课 - 固态化学导论课程节选