The length of the reticule at x 400 magnification was 0.2 mm,and the total surface area corresponded to 0.04mm2(0.2 x 0.2mm),是什么意思_The length of the reticule at x 400 magnification was 0.2 mm,and the total surface area corresponded to 0.04mm2(0.2 x 0.2mm),在线翻译_英语_读音_用法_例句