定时备份
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timing backup 定时备份
backup timing
备份时间
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Omega, which has timed Olympic events since 1932, USES four digital cameras as a backup to its electronic timing system. Images from track events have routinely been released by Omega.
从1932年开始就是奥运会计时商的欧米茄，为它的电子计时系统用四个数码相机进行备份，赛后这些图片一般都会由欧米茄公布出来。
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