求翻译：在工艺程序执行中，只有当前动作满足一定条件时才会转入下一个动作。这个条件在一些工艺动作中是开关，在一些工艺动作中是时间，在另一些工艺动作中可能是开关也可能是时间,还有一些动作是瞬时转换，即执行到这一步后立即执行下一步。这里的开关不一定是硬件开关，在伺服控制中往往是伺服驱动器反馈的到位信号或PLC内部脉冲完成信号。是什么意思？

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In craft procedure execution, when the current movement satisfies the controlled condition only then can change over to the next movement.This condition in some craft movement is a switch, in some craft movement is the time, in another some craft movement possibly is the switch also possibly is the

In the execution of the process, only current actions if certain conditions are met will be transferred to the next action. This condition in some of the technology in action are switched, in some of the technology in action is the time, in other processing actions may be a switch may also be the ti