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Dual-frequency laser interferometer is a widely used precision measurement instrument.
双频激光干涉仪是应用广泛的精密测量仪器。
The present state of the dual-frequency laser interferometer in the world is introduced in brief. The trends of development to high resolution, high accuracy, high measurement speed etc. are given.
文章概述了国内外双频激光干涉仪产品的现状，介绍了近年来双频激光干涉仪向高分辨率、高精度、高测速等几个方向的发展趋势。
The dual-frequency laser as a light source takes a key element in the interferometer.
本文提出一种新型中频差双频激光器——磁致旋光-塞曼双频激光器。
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