Time：2015.12.29
1. What is light?
The light emitted from the light emitter (source) out of the electromagnetic wave. Visible light is electromagnetic waves that can be perceived by the human e…
Details
1, viscous
Winding printed ink layer is attached to a contact surface (usually on the back of the film), thereby preventing the occurre…
Details
Time：2015.12.29
Examples of failure
phenomenon
the reason
Method of exclusion
1. increase the …
Details