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2025年，淘宝闪购、京东、美团掀起的外卖大战，搅动着整个餐饮行业的营收。这场以流量争夺为核心的战役中，平台大额补贴与品牌低价策略相互叠加，既推动瑞幸外卖订单激增，也带来成本高企、利润率下滑的挑战。
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Recall that a barycentric coordinate system is given with respect to a -dimensional simplex, where is no larger than the dimensional space. Given a set of scattered points, it’s possible to create a tessellation of the space by forming simplices from the points, such that any input point that lies within the convex hull of the scattered set can be expressed in terms of the enclosing simplex and its corresponding barycentric coordinates2. This can be understood as a kind of triangulated irregular network (TIN).
（三）后处理，是指对反应堆乏燃料进行处理，以分离其中的裂变产物，并回收可裂变物质的过程。