Space activities include space technology (also known as space ..
Magnetron sputtering is a kind of physical vapor deposition (Ph..
天津福彩网Comprehensive industrial sectors for the development and utiliz。。
MOCVD is a new vapor phase epitaxy technology developed on the ..
It is mainly used in the laboratory, laboratory heating and hea。。
Metal nanopowders are new materials with strange or anomalous p..
The paint on the metal surface, because the paint and metal sur..
According to the different performance requirements of the work。。