// 核心逻辑：只有当前时间 栈顶时间 → 无法合并，是新车队（push）
优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
。服务器推荐对此有专业解读
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The rest of the material produces digestate which can be used as fertiliser by nearby farms.
An Environment Agency spokesperson told the BBC: "As a result of climate change, we are seeing more flooding and extreme weather. Whilst it is sadly not possible to stop all flooding, the Environment Agency is committed to helping communities to adapt.