To sex of shading cloth shading differentiate, have a very simple method, illuminate shading cloth to lamplight namely, the penetrable degree be clear at a glance of its light.

• 对于遮光布遮光性的鉴别，有一个很简单的方法，就是将遮光布对着灯光照一下，其光线的穿透程度一目了然。