lack of side fusion

航海及海运专业英语词汇(L1) ... lack of root fusion 根部未焊透 lack of side fusion 侧面未熔合 lack of uniformity 不均匀性 ...

电气专业英语L-Z - 豆丁网 ... lack of sharpness 清晰度不佳 lack of side fusion 侧面未焊合 lack of solder 脱焊，虚焊 ...