The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.
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。关于这个话题，搜狗输入法2026提供了深入分析
果农和收购商称，今年浦北茶枝柑鲜果收购价走低。按20斤鲜果出1斤柑皮比例，叠加人工成本，品相好的新柑皮成本约30元/斤，低端柑皮仅六七元，且当年新柑皮并非真正陈皮。，这一点在服务器推荐中也有详细论述
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