cyclen.循环；周期；自行车；摩托车v.骑自行车；(使)轮转；(使)循环cycle chain车链cycle timer循环定时器,循环时间记录器,循环计时器,周期替续器cycle clock时钟脉冲周期cycle graph周期图cycle delay周期延迟cycle check循环校验cycle shift循环移位cycle plant[机] 天然汽油回收厂cycle ratio周期比cycle trick单车绝技