求翻译：焊针直径符合工艺技术要求，焊针外观无变形、表面光滑清洁。点焊后钢壳壳底不能明显凸底，镍带与钢壳焊接强度＞5kg，确保无虚焊电芯．是什么意思？

Solder pin diameter to meet the technical requirements of the appearance of the solder pin deformation, the surface is smooth and clean. Spot can not obviously convex steel shell bottom end of the nickel with steel welding strength> 5kg to ensure that Weld batteries.

Solder pin diameter with technology, solder pin look no deformation, surface smooth and clean. After spot welding steel housing and the bottom is not visible, the nickel-steel welding strength with > 5 KG, make sure that no virtual welding cell.

Welds the needle diameter to conform to the processing technology requirement, welds the needle outward appearance not to have the distortion, the surface smoothly clean.After the spot welding the steel abnormally puffy and swollen bottom cannot the obvious raised bottom, the nickel strap and steel

Welded pin diameters in accordance with technical requirements, welding-pin appearance without deformation, surface smooth and clean. End of spot welding of steel shell after Shell cannot clear convex bottom, nickel and steel shell welding strength >5kg, ensuring that no virtual welding cell.

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