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.
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In Europe, several very large-scale projects are advancing in the North Sea region, particularly in Norway, the Netherlands, Denmark and UK.，推荐阅读同城约会获取更多信息
GPs already set aside a chunk of their daily appointments to try to ensure patients who need an immediate appointment can get one.
Фото: Patrick Pleul/dpa (Photo by Patrick Pleul/ Picture alliance via Getty Images