In this paper, the author advances two new measurable ways to improve experimental accuracy with biprism to measure wave length.
本文对用双棱镜测定光波长的实验提出了两种新的能较明显地提高实验精度的测量方法。
When the distance between two wave crest is similar with length of vessel, speed must be reduced in time in order to avoid stem get into wave when vessel is in trough.
当两个波峰的距离和船长接近时更要注意及时减速，以免船舶进入波谷时船首穿入大浪中的危险。
When the distance between two wave crest is similar with length of vessel, speed must be reduced in time in order to avoid stem get into wave when vessel is in trough.
当两个波峰的距离和船长接近时更要注意及时减速，以免船舶进入波谷时船首穿入大浪中的危险。
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