Forgetting releaseLock() permanently breaks the stream. The locked property tells you that a stream is locked, but not why, by whom, or whether the lock is even still usable. Piping internally acquires locks, making streams unusable during pipe operations in ways that aren't obvious.
“在德国，我可能总是面对‘为什么我不同’或者‘是什么让我们不同’这样的问题。”这些追问，起初或许只是少年对自身特殊性的隐隐不安与自卑，但最终沉淀为一种更为深邃的驱动力。“大概真的只是我对历史本身和文化认同根源的好奇心。”他这样剖析自己。作为一个在经历过巨大变迁的家族中出生的人，理解家人的过去，近乎一种本能。
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"Tuning frictional behavior on the fly has been a long-standing engineering dream," said co-author Katia Bertoldi of Harvard University. "This new insight into how surface geometry governs slip pulses paves the way for tunable frictional metamaterials that can transition from low-friction to high-grip states on demand.” In addition, the dynamics revealed by these results are similar to those of tectonic faults and thus give scientists a new model for the mechanics of earthquakes, according to their new paper published in the journal Nature.
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