backpressure: 'strict'
成立专业化、国际化的代谢性疾病防治合作平台，凝聚各国力量，共享优质资源，回应区域健康需求，推动区域协调合作与经验分享，具有重要的现实意义。，更多细节参见雷电模拟器官方版本下载
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Backpressure is strict by default. When a buffer is full, writes reject rather than silently accumulating. You can configure alternative policies – block until space is available, drop oldest, drop newest – but you have to choose explicitly. No more silent memory growth.，这一点在safew官方下载中也有详细论述
Екатерина Ештокина
getChunks() { return chunks; }