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评论:生物显微镜的维护和保养
光学仪器广泛应用于国防和国民经济各部门,如检定产品质量、控制生产流程、研究微观世界、宇宙探索等。 显微镜的发明,突破了人类的天然生理限制,把视觉伸展到肉眼所不能见到的细小结构里去了。从此,人们可以窥探自然界的秘密,把知识范围大大扩展开来。 &nbs [更多>>]