scratch trace 中文意思是什麼
scratch trace
解釋
抓痕-
Seeking faulted seam with scratch trace
淺談利用擦痕尋找斷失煤層 -
Very tiny, partly defect such as scratch and roller trace is allowed ; very tiny oxidation colour or oil spot is allowed
允許有輕微的、局部的劃傷、輥印等缺陷;允許有輕微的氧化色(發暗)以及輕微的、局部的油跡。
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