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.
研究还指出，除了车龄，行驶里程也是影响因素。行驶超过16万公里的电动汽车，其电池健康状态仍在88%至95%之间。不过，这些数据也并非绝对可靠。例如，一辆高里程的较新的车，其电池性能可能优于一辆低里程的老车。
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