复合显微镜包括两个短焦距凸透镜，即位于镜筒两端的物镜和目镜。
The compound microscope consists of two convex lenses with short focal length, the objective and eyepiece lenses, fitted at opposite ends of a tube.
血管口径用手术显微镜的目镜标尺测量，血管长度和分布范围用直尺和分规测量。
Vascular caliber with operating microscope eyepiece scale of measurement, the length and distribution of blood vessels using a ruler and measurement of sub-regulation.
1920年，比较目镜问世。此项技术使得可以同时观察到来自两台显微镜的样品。
In 1920, the comparison eyepiece is introduced, which allows simultaneous observation of two specimens under two microscopes.
1920年，比较目镜问世。此项技术使得可以同时观察到来自两台显微镜的样品。
In 1920, the comparison eyepiece is introduced, which allows simultaneous observation of two specimens under two microscopes.
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