The dissertation studies the problems of the voltage regulation and arc—extinguishing of magnetic valve controllable reactor both in theory and application.
论文从理论和应用两个方面研究了磁阀式可控电抗器在电力系统中的调压和消弧问题。
2
The contrast tests of vibratory submerged-arc welding and normal SAW(submerged arc welding) on the valve steel A105 was carried out.
采用阀门用钢A105作为试验材料，采用机械振动焊接与常规埋弧自动焊接相结合的方法进行对比试验。
3
Objective To study the correlation features of mitral valve prolapse (MVP) with acute rheumatic carditis (ARC).