This article looks back on the status of application of laserscience and technique to medical optics and surveys new progress, anticipated trend and needs in the field of medical laser.
本文回顾了激光技术在医用光学中的应用概况，评述了新的进展、发展趋势和需求。
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It works by shining a hollow laser beam around small glass particles, as Inside Science explains.
它使用中空的激光波束移动微小的玻璃粒子。
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Laser is one of the most sensational developments in recent years, because of its applicability to many fields of science and its adaptability to practical USES.