The manufacturing technological process of AISI 422 steel sectorplate blank has been described.
介绍了AISI 422钢扇型板毛坯的制造工艺流程。
2
The Ruzhou coalfield lies at the front part of thrusting nappe structural zone western Henan sector, south margin of the North China plate.
汝州煤田位于华北板块南缘逆冲推覆构造带豫西段前锋部位，区内逆冲推覆构造较发育。
3
Optical coupling and transmission performing with optic fiber and fiber optic face plate, a new sector beam linear array scanning X-ray detector technique based on plane array CCD devices is proposed.