当工程师发现机器停止工作，他停下来查看出了什么错。
When the engineer found the machine stopped working, he stopped to check what the.
电源键：按一次机器开始工作，再按一次机器停止工作。
Key of the power: Begin to work according to the once machine, press the machine once again and quit work.
电路部分具备过流保护功能，当电流超过一定额定值时，保险丝断开机器停止工作，最大限度的保护机器安全。
Some have over-current protection circuit, when the current exceeds a certain rating, the fuse disconnects the machine to stop working to maximize the protection of machine safety.
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