折叠。经过轧制或采用其它方式加工的金属沿着轧制金属表面折叠起来，但并未被熔合成完好金属。

Lap. Fold of metal which has been rolled or otherwise worked against the surface of rolled metal, but has not fused into sound metal.

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折叠。经过轧制或采用其它方式加工的金属沿着轧制金属表面折叠起来，但并未被熔合成完好金属。

Lap. Fold of metal which has been rolled or otherwise worked against the surface of rolled metal, but has not fused into sound metal.

youdao