短语词组短语rated d duty 额定工捉式Rated Duty Cycle 额定负载持续率;负载持续率;额定负载持率Rated Duty -cycle 额定负载持续率Rated duty cucle 额定负载持续率rated short -circuit duty cycle 额定短电路工作周期;额定短路任务周期;额定短路占空比 返回 rated duty