u形坡口 meaning in English

u groove
u-groove

Method of u - groove weld cracking test
U形坡口焊接裂纹试验方法
The paper introduces single " u " groove welding procedure for stainless steel inner cylinder of multilayer high pressure vessel , opening up a new method for welding clading stainless steel vessel
详细介绍了内筒为不锈钢的多层高压容器外u形坡口的单面焊接工艺，从而为不锈钢复合容器的焊接开辟了一条新途径。