bound component
1.In this paper, the separation of free and bound flavour component from orange juice by Amberlite XAD 2 absorption and methanol elution is processed, followed by simultaneous enzyme catalysis extraction using glucosidase and hydrochloric acid to release the potential flavour component from orange juice.
2.The shadow mask is the critical component of the Colour Picture Tube and the important component for the choice of colour ,Its function concentrates on the limitation of electronics bound diameter and the screening direction ,The electronics bound which is sent by the electronics gun goes scanning, During the scanning process, we should guarantee every bound gathering into the small holes situated on the screen, Then these bounds will point to the regularized position through the small holes on the flat mask, And then three basic colours will be produced, At the same time, those useless electronics will be blocked by the mask board.

