"But you need an oil price that makes that worthwhile. Unless you can generate sufficient money to justify that, it's very difficult to see the industry coming back."
优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
。业内人士推荐同城约会作为进阶阅读
Galaxy S26 and S26+ Sam Rutherford for Engadget
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