定时按规定时间点火的或定时爆炸的。例定时炸药。英time;具有一个有目的的时滞动作不论操作力强度的大小迟延时间是大体相同的尤其用于继电器。英definite-time;确定时间。英determinated time;按时按照确定的时间。英accoding to the fixed time;[查看详情]

如期按照事先约定的时间。例会议将如期召开。英as scheduled; by the scheduled time; on schedule;[查看详情]

及时立刻；马上。例工作中有问题必须及时解决。及时相遣日。——《玉台新咏古诗为焦仲卿妻作》英in time; at the right moment; be propitiously timed; in good time; forehanded;迅速地；毫不耽搁地。例你应及时地动身回家。英forthwith; without delay; promptly;[查看详情]

按时同“按期”英punctual;[查看详情]

按期依照预定的期限。例按期归还。英according to the fixed period; on schedule;[查看详情]