timing

详细解释:n. 时间选择, 时间测定, 定时, 调速
【计】 定时器时钟
【化】 定时; 同步

英语解释：

名词 timing:

the time when something happensthe regulation of occurrence, pace, or coordination to achieve a desired effect (as in music, theater, athletics, mechanics)

动词 time:

measure the time or duration of an event or action or the person who performs an action in a certain period of time同义词：clock, time