intervalen.丘陵间低地intervaln.间隔；休息时间；(数学)区间；(音乐)音程interval halving区间分半法interval measure区间测量Interval Pumping间抽interval contact时限接点intervaled scale区间标尺interval systems区间系统interval charging间隔装药interval estimate区间估计interval register区间寄存器interval integral区间积分