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在七年级的生物课上,我们曾借助于一个神奇的光学仪器观察到了洋葱的表皮细胞,从而获得了对细胞结构的初步认识,老师也一定给你介绍过那个结构“奇特”的工具——显微镜.它一般是用几个透镜的组合构成的一种光学仪器,也是人类进入原子时代的标志.显微镜分光学显微镜和电子显微镜.光学显微镜是在1590年由荷兰的杨森父子首先发明的,但最初的光学显微镜的放大倍率很小,现在的光学显微镜的最大放大倍率约为
In the seventh-grade biology class, we have observed the onion epidermal cells with the help of a magical optical instrument to gain a first-hand understanding of the cellular structure. The teacher also introduced you to the “peculiar” tool of the structure - Microscope. It is generally an optical instrument made up of a combination of several lenses and is also a hallmark of humanity’s entry into the atomic age. Microscopy Spectroscopic and electron microscopy. Optical microscopy was first invented by the Dutch Jansen and later in 1590 , But the initial optical microscope magnification is very small, and now the maximum magnification of the optical microscope is about