单词：saddle point
saddle point的用法和样例：
例句
- These saddle points represent points of stagnation of the current flow.这些鞍点代表电流的驻点。
- A stationary point which is neither a local maximum nor a local minimum point is called a saddle point.一个既不是局部极大点又不是局部极小点的平稳点称为一个鞍点。
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