non - linear equations的用法和样例：
例句
- Naturally, forecasters began to look at the wild and woolly places where only chaotic nonlinear equations ruled.
预测者们自然地开始把目光投向那些更为狂野和更为杂乱的地方，那些仅由非线性方程统治的地方。 - With the information and the undistorted parts, the whole spectrum can be recovered by solving the nonlinear equations, so the AC signal is also recovered.
这一先验知识结合信号中未失真的频谱部分，通过求解一组非线性方程即可近似恢复出交流信号的全部频谱，从而恢复出完整的交流信号。
