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.
影石在公告中表示：「本次 337 调查未对公司生产、经营造成实质性影响。公司将持续不受限制地在美国进口和销售现有产品。」
。关于这个话题，Line官方版本下载提供了深入分析
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While the acoustic deterrent costs £50m, the wider fish‑protection system - including larger inlet heads and a return pipe for fish - will bring the cost to £700m.
George WrightBBC News