... poor finishing at welds 焊接表面处理不良 rusty spots 锈斑 weld spark wire residue 焊接火星残渣 ...
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I see rusty spots on the spoke crossings.
我看到过路的发言生锈点。
We decided to add dirt, dust and rusty spots subsequently in order to have more free choices for post production.
后来我们决定叠加一些泥土、灰尘和锈斑，为后期制作做准备。
The causes and solutions of rusty spots, a quality problem always troubling copper strip makers, are discussed here.
铜带的色斑一直是各铜加工厂面临的质量问题之一，本文时色斑的起因与解决方法做了详细叙述。
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