The letters are invisible to the naked eye, and can only be read with a medicalmicroscope at 400 times magnification.
这些字母小到用肉眼无法识别，只能用放大400倍的医学显微镜才能看清。
2
The paper tells about Latest scientific research abroad on medicalmicroscope, laparoscope, Joint-scope, narcotic machine, breathing machine and pumping machine, etc.
本文介绍了国外医用手术显微镜、腹腔镜、关节镜、麻醉机、呼吸机、抽吸器等设备的最新科研情况。
3
Salkey, an assistant dermatology professor at Eastern Virginia Medical School, said that under the microscope, the affected skin resembles skin damaged by long-term sun exposure.