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- The main characteristic of the designed optical system is that Fourier transforms lens and collimating and beam expanding system uses the same lens. 其中，最主要的特点是傅里叶透镜组与准直扩束系统共用同一片正透镜。
- We can draw such a conclusion that the Galilean beam expander with an asphericcal lens is better than that with a spherical lens. 我们得出的结论是：伽里略非球面透镜扩束器比伽里略球面透镜扩束器好。
- Collimating and beam expanding system 准直扩束系统
- Its drilling unit consists of laser, optical beam expander, galvanometer deflective mirror and focus system. 制孔单元由激光器、光学扩束、振镜和聚焦系统构成。
- Lens design for multi-wavelength laser beam expander 多波长激光扩束器的光学设计
- Optics: windows, prisms, lenses, beam expanders, laser mirrors, beam splitters, polarizers, etalons, filters, telecommunication optics and optical mounts, etc. 光学元器件：光学滤光片、透镜、激光镜、波片、窗口材料、分束片、偏振片、扩束镜、标准具、镀膜元件和光具座，等；
- The company is eager to expand into new markets. 那家公司急欲开辟新的市场。
- The expanding economy enriched the peasants. 不断发展的经济使农民们富裕起来。
- She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
- The beam of the searchlight pierced the darkness. 探照灯的光柱射入黑暗中。
- Our automobile industry is expanding. 我们的汽车工业在发展。
- His answer was right on the beam. 他的答案完全正确。
- Our foreign trade is continuously expanding. 我们的对外贸易不断发展。
- He is thinking of expanding his business. 他正考虑扩展他的生意。
- Metals expand when they are heated. 金属遇热则膨胀。
- The king sought to expand his realm. 国王谋求扩大领土。
- He struck the beam with his head. 他的头撞到梁上了。
- They conferred on the best way to expand business. 他们商议扩展业务的最好方法。
- The beam has a thickness of 3 inches. 这根梁厚3英寸。
- Would you expand on the matter a little further? 请你再进一步谈谈这件事好吗?
