The average incubation period is four days, but can range between two and 10 days.
潜伏期平均为4天，但可为2天或10天不等。
However, the amplitudes of ERG were sustained in normal range during the study period.
而ERG的波峰值在观察期内维持在正常范围。
The test result shows that the dither range is less than 8% of the symbol period.
测试结果显示，位同步抖动范围小于符号周期的8%。
To qualify a candidate's training period may range from six months to five years.
为了培养出一位合格的管理人员，管培生培训期从半年到五年不等。
To qualify a candidate's training period may range from six months to five years.
为了培养出一位合格的管理人员，管培生培训期从半年到五年不等。
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