名词
中文翻译：同时差分方程
同义词：
['simultaneous differential equations', 'simultaneous equations']
例句：
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1. Theseequations are used to model the behavior of a system in which the state of one variable depends on the states of all other variables at the same time.
这些方程用于建模一个系统中的行为，其中某一变量的状态取决于所有其他变量在同一时间的状态。
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2. In this case, the simultaneous equations are solved using numerical methods.
在这种情况下，使用数值方法求解这些联立方程。
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3. The simultaneous equations were solved by hand, which was very labor-intensive.
这些联立方程手工解算非常费时费力。