求翻译：规格为Φ140×19mm焊缝（双壁单影）共检测95道计602张片，返修或割除后重焊焊缝质量均达到II级或以上合格，一次合格率100%是什么意思？

Specifications for Φ140 × 19mm welds (double wall alone) were detected in the 95 meter 602 chip, rework, or cut off after re-welding the weld quality are up to level II or above qualified, a pass rate of 100%

Specifications are 140 x 19 mm Φ weld (double-wall 95 single-film) test a total of 602 Road, Zhang piece after circumcision in return to repair or re-welding weld quality has reached II level or above, and pass a qualified rate 100%

The specification (dog-legged single shade) altogether examines 95 idea 602 pieces for φ140×19mm the welded joint, after the repair either excises welds the welded joint quality to achieve again II level of or above qualified, a qualified rate 100%

Specifications for PHI 140x19mm seam (double-walled Dan Ying) total test period of 602 95, after repair or cut welding seam quality achieved grade II or above pass rate 100%