A.裂纹 B.条状夹渣 C.未焊透 D.未熔合
A.≤0.4mm B.≤0.5mm C.≤0.6mm
A.椭圆 B.圆 C.直线
A.3mm B.5mm C.2mm
A.18.2mm B.17.5mm C.17.9mm
A.≤0.3mm B.≤0.5mm C.≤0.8mm
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