The patterns look like stripes that were etched or dug over the top of the landscape in the area.
这些条状的图案看起来像是被风化了或者在陆地上新翻开的土壤。
There inside he found a beautiful gold pocket watch. Running his fingers slowly over the finely etched casing, he unlatched the cover.
里面是一个漂亮的金怀表，手指轻轻地划过精致的表壳，他打开了怀表。
The etched section also reveals that multiple weld passes were made over the top of the original submerged arc weld pass.
从酸蚀断面还可以看出：在原自动埋弧焊的上面覆盖有多层焊道。
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