该关系式为很复杂的非线性形式。
这些方法都是基于一种线性规划形式，十分有效。
They are based on one form of linear programming, and are very efficient.
线性调频信号可能将成为水下目标强度宽带测试的一种主要信号形式。
LFM signal will likely become the main signal form in underwater target strength broadband test.
该模型的数学形式是一个非线性二阶常微分方程，利用有限差分方法进行求解。
The mathematical expression of this model is a second order non linear ordinary difference equation.
该模型的数学形式是一个非线性二阶常微分方程，利用有限差分方法进行求解。
The mathematical expression of this model is a second order non linear ordinary difference equation.
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