deviation from the course 偏离比赛路线
He now bore off to the right to counteract the possible deviation from his true course.
为了修正对正确路线的偏离，现在，他要朝右开始他那一摇一晃的行程了。
This pattern is based on an average of many years, of course, and there can be wide year-by-year deviation from that pattern.
当然，前面这些描述都是基于多年统计的平均数据，而具体说来，个别的周期也不乏例外的现象。
DEVIATION, To change from a specified course or procedure.
偏差，与指定的航道或程序之差。
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