这句话怎么理解? 个人认为是“层压”的意思laminations。 set-through nozzles made from rolled plate and with a wall thickness in excess of 19 mm shall be examined for laminations along the line of the attachment weld prior to welding. 由卷板制成的壁厚超过19mm的透明喷嘴应在焊接之前沿着焊接连接线检查层压。 个人见解。查看更多