介绍了光开关的工作原理，根据合肥光源光脉冲的波长、重复频率、束团尺寸以及束团长度，进行了光开关系统设计。

The principle of the optical shutter system is presented, and a system is designed according to the wavelength and repetition frequency of light pulse, and the dimension and length of bunches in HLS.

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并以此为基础研究在层流射流条件下 ，金属熔体受一定激振频率后产生的表面波波长和激振频率的关系。

The dependence of jet speed upon pressure and that of wavelength of surface wave upon vibration condition was studied through rapid solidification.

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So, it's up on this screen here now, so we'll work on the other one. If you can identify which of these statements is correct based on what you know about the relationship between frequency and wavelength and also just looking at the waves.

它们之间的关系,现在在大屏幕上了,鉴于你们知道,频率和波长的关系,看到这些波你们来,判断下这些说法是否正确。

麻省理工公开课 - 化学原理课程节选