On account of the high non linearity related to the large amplitude motion of free liquid surface, it is very difficult to obtain a complete theoretical solution.
它涉及到自由液面大幅度运动的一系列非线性问题，很难获得一个完全的理论解。
Make sure the compliance voltage is high enough to avoid problems due to source contact non-linearity.
要确保输入端钳位电压足够的高，以避免由于源接点的非线性而产生的问题。
Due to the complexity and high non-linearity of microbial fermentation process, most simple mathematical models cannot describe the behavior of biochemistry systems very well.
由于微生物发酵过程的复杂性和高度非线性，更多的简单的数学模型不能很好地描述这类生化系统。
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