光这一项开支就节约5万元。

So far as the expenses are concerned, we saved as much as 50,000 yuan.

《新英汉大辞典》

光一旦照射到这些含基因的神经元上，就会改变它们的行为。

Shining a light on neurons containing the gene can change their behavior.

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本文将边界元法引入光弹性应力分析使主应力分离问题得到简化，从而使光弹性应力分析方法更简便可行。

In this paper we use boundary element method to separating main stress. It can simplify the problem and provide a practical method for separating main stress.

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