1. Hold the arm in your right hand and hold the mirror in your left hand. 2. Place the microscope on the bench, slightly to the left (the microscope is placed about 7 cm from the edge of the bench). Install the eyepiece and objective lens. Second, the light 3. Turn the converter so that the low magnification objective is aligned with the clear aperture (the front end of the objective is kept at a distance of 2 cm from the stage). 4. Align a larger aperture with the aperture. The left eye is in the eyepiece (the right eye is open and the picture is drawn at the same time). Rotate the mirror so that light is reflected through the light through hole into the lens barrel. Through the eyepiece, you can see the white field of vision. Third, observe 5. Place the specimen of the slide to be observed (also made of thin paper with the word "6") on the stage and press it with the clamp. The specimen should face the center of the light-passing hole. 6. Turn the coarse focus screw to make the lens tube slowly descend until the objective lens is close to the slide specimen (the eye looks at the objective lens to prevent the objective lens from touching the slide specimen). ...
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