现在使用毛玻璃黑板的学校颇多。毛玻璃黑板较之木漆黑板有许多优点,不反光,吸粉能力强。但毛玻璃黑板一般是在背面涂上黑漆或墨汁,而玻璃毛面透明度很差,透过来的黑色多半是灰色或淡灰色,粉笔写在上面,字迹不清晰,影响视觉效果。怎样才能增强毛玻璃黑板的黑 There are a lot of schools that use frosted blackboards now. Frosted glass blackboard compared to wood paint has many advantages, not reflective, strong ability to absorb powder. However, the gross glass blackboard is usually painted with black paint or ink on the back, while the glass matte surface is very poor in transparency. Most black glass is gray or light gray, and the chalk is written on it. The writing is not clear and the visual effect is affected. How to enhance the black glass blackboard