It is found that the loss in the crystal can make a mismatched incident Gaussian beam evolve to a matched one, and then become to a steady-state bright soliton.
同时我们还发现，在一定条件下，晶体损耗能使振幅失配的高斯光束演化成匹配的高斯光束，并最终演化成稳定的明孤波。
The height adjusting of the balance beam is matched with a voice adjusting switch, so that the function of changing different games and teaching can be realized.
调节平衡木的高低与语音调节开关配合，便可实现多种游戏、教学变换的功能。
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