【机械工程】电弧火箭发动机（电弧发动机）

arc

A.C. arc welder

shielded inert-gas metal arc welding

plasma(arc)cutting

self-regulating arc welding transformer【电】

arc-hyperbolic function【数】;inverse hyperbolic function【数】

electroslag remelting plant (electroslag refining plant) heating by electric arc

one-fourth convex arc milling cutter