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水晶表面坑洼的地方，有的深，有的浅，这是水晶在成长过程中自然形成的，并非是人为造成的损伤。缺陷位置本来包有其他矿物晶体，由于包裹体和水晶结合部位的结合力不强，当表面抛光时，矿体脱落，留下空位。这种缺陷在绿幽灵、钛晶、金发晶上都比较常�

All-solid-point out ultraviolet lasers have already been commonly Utilized in the fields of mechanical flaw detection, lithography, micromachining and drugs for the advantages of tiny quantity, long lifetime, significant efficiency, very good beam excellent, vast tuning and slim spectral line, and so on. Employing significant electric power around-