Then use the coil ring machine rolled into a circle, with the electrode to weld the interface firmly, welding mouth to carry out X spectroscopy.
然后用卷环机卷制成圆圈，用焊条把接口处焊接牢固，焊口处要进行X光谱检验。
2
From synthetically analyzing experimental results, it is indicated that when injecting gas by a single nozzle, gas-melt interface formed showed three kinds of shapes: ring, round-ring, and round.