The language of emcees, directly linked with the quality of the performance and propagation effect has a leading and deep influence over the public.

节目主持人语言直接关系到节目质量和传播效果，并在语言方面对大众起着示范、引导和熏陶的作用。

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It would be of important significance to study the laser beam characterization, beam propagation, mode decomposition and beam quality control.

因此，研究部分相干光的传输特性、光束质量和模分解具有重要的理论意义及实用价值。

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Laser beam characterization, beam propagation, beam transformation and beam quality control are always the fundamental research subjects in laser optics and laser technology.

激光束的描述、光束传输变换和光束质量控制一直是激光科学技术和激光光学中的重要理论研究工作。

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