最用途广泛的机械工具是引擎车床，提供一个原则轴转台式主运动，当适当的合闸动作被给予到工具时。
The most widely used machine tool is the engine lathe, which provides a principle axis rotary primary motion to while the appropriate feed motions are imparted to the tool.
高压、超高压输电线路的开关为分相开关，当对侧开关单相偷跳后，在线路负荷比较重、同时重合闸动作时间比较长的情况下可能引发系统振荡。
HV and EHV transmission lines are equipped with split-phase breaker. If a longer reclosing time is setting in a heavy load line, the system may swing after the trip without fault of remote breaker.
少数情况属永久性故障，自动重合闸装置动作后靠继电保护动作再跳开，查明原因，予以排除在送电。
Limited circumstances permanent fault, automatic re-closing devices on the move after the opening relay action Zaitao to identify reasons, be excluded from the power supply.
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