有时保护器来不及动作，很快达到堵转电流，可能直接导致电机烧毁。
If you need to wait on a blocking action — say, the results from a remote database query — it is not clear exactly how long you will need to wait for results to be available.如果您需要等待一个阻塞操作—比如，对于来自远程数据库查询的结果—您不会确切地知道在可以使用结果之前究竟要等待多长时间。
The Minneapolis software engineer says the techniques didn go deep enough to help him see how his emotions were blocking action and shift them in a more positive direction.他说，以前的方法不够深入，未能帮助他看清自己的情绪是如何阻碍了行动、阻碍了将之转化为更为积极的态度。
