一、电脑室的环境要洁净、通风,二氧化碳的含量要符合空气清洁的标准。二、要养成良好的操作习惯。首先要注意坐姿。正确的坐姿应该是背略向后靠,前臂和手掌与地面平行,大腿与躯干、小腿与大腿约成直角。其次,眼睛同电脑屏幕的上部成水平线,目光向下,与屏幕中心成15度的夹角。眼睛与屏幕中心的距离,最好保持在50厘米以上。操作时要经常眨眼,以减 First, the computer room environment to be clean, ventilated, carbon dioxide content to meet the air cleaning standards. Second, we must develop good operating habits. First, pay attention to sitting posture. Correct sitting posture should be back slightly back, forearm and palm parallel to the ground, thighs and torso, calf and thigh about a right angle. Second, the eye level with the upper part of the computer screen, eyes down, and the center of the screen at 15 degrees angle. The distance between the eyes and the center of the screen is best kept at 50 centimeters or more. The operation should always blink, to reduce