激光是六十年代初在生产实践和科学实验中发展起来的一门新技术。由于它具有方向性好、单色性好、相干性好、及高亮度等特点;因此激光在工业、农业、国防等方面得到广泛应用。广东省和广州地区在粉碎“四人帮”后的大好形势鼓舞下,特别是传达了华主席和党中央对科技工作的重要指示和去年相继召开的省和全国激光经验交流会的 Laser is a new technology developed in production practice and scientific experiment in the early 1960s. Because of its good direction, good monochromatic, good coherence, and high brightness and so on; so the laser in the industrial, agricultural, national defense has been widely used. Inspired by the excellent situation after the smashing of the “Gang of Four,” especially the important directives of Chairman Hua and the party Central Committee on scientific and technological work as well as the provincial and national laser experience exchange meetings held last year