double-bevel groove weld 双斜边坡口焊缝 ; [机] 双斜坡口焊 ; 双面斜坡口对接焊缝
double-V groove weld 双斜坡口焊 ; 双斜边坡口焊缝
double groove weld 双面坡口焊缝
double fillet weld 双填角焊缝
double-flanged butt weld 双弯边对接焊缝 ; 双边卷边对焊接头
double-J groove weld 双J形槽焊
continuous double fillet weld 双面连续贴角焊
double submerged arc weld 双向埋弧焊
double V butt weld 双V形对接焊
A new process of high speed seam welding with secondary rectification for double seam possesses good weld quality, high welding speed, smooth bead and low consumption features.
双缝高速次级整流缝焊是一项新工艺，具有焊接质量好、焊接速度快、焊缝表面光洁及能耗低等优点。
An advanced double wires narrow gap SAW technique, equipment and special procedure have been used to weld high pressure storage tanks successfully with high quality welding joints.
采用先进的双丝窄间隙埋弧焊设备和专用焊接工艺，成功地焊接了大厚壁高压蓄势器，质量检查全部合格。
The contactors feature silver cadmium oxide, double break contacts to assure a long electrical life, high weld resistance and excellent interrupting capacity.
这种接触器采用银氧化镉材料，双断接点，有利于保证较长的电气寿命、较高的抗焊接性能和杰出的断开容量。
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