发布时间:2025-01-31 17:49:41
在数控编程中,M30是一个特殊的代码,表示程序结束和重置。当执行到M30时,机床会停止运行,并且回到程序的起点,以便下一次加工任务的开始。M30通常用于整个程序的结尾,用于告诉机床操作员可以将工件移除并进行下一道工序。
广州居住证过期了怎么续期需要什么资料广州居住证过期了怎么续期
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