A novel plasma reactor with rotary multi tip electrode and a fixed concentric cylinder electrode has been developed in order to use in CH4 discharge and to produce unsaturated C2 hydrocarbons.
The method of decomposition and machinability evaluation used for multi-layer and concentric holes of complex box-shaped parts is discussed and it has been applied to CAPP-NC system.
针对复杂箱体多层同轴孔的分解和加工性判断进行了研究，并应用于CAPP - NC系统中。
3
The dryer shaft is welded with several sets of multi-layer non-concentric seamless tubes, each of which is comprised of multiple seamless tubes having different sizes bent in Archimede's spiral.