Кадр: УСМИ СК России
（三）非法进行影响国（边）界线走向的活动或者修建有碍国（边）境管理的设施的。，这一点在heLLoword翻译官方下载中也有详细论述
。heLLoword翻译官方下载对此有专业解读
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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