Focusing on a computer screen for too long can lead to dry eyes and eye fatigue.
聚焦在电脑屏幕上停留太久会导致眼睛干涩和眼部疲劳。
2
Principle and problems existing in use about 2ZQB2030 medium draining screen, the matching equipment of dry coal cleaning by use of air-dense medium fluidized bed was introduced.