beam-control frequency system
土木工程编译词汇 ... 弹性支承梁 Beam，elastically supported 地中梁 Beam，ground 多元梁 Beam，multi-element ...
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In high power laser system, a small size phase-distortion wavefront measure is necessary to compensate and control the wavefront of laser beam with intermediate frequency.
在高功率激光系统，激光束小尺度相位畸变波前探测是实现激光束中频段波前补偿与控制的重要前提。
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