witness mark

常见例句

雙語例句

• After degating only a small witness mark remains.
  澆口切除後衹畱下細小痕跡。
• The main disadvantage of the design is that a large witness mark is left on the moulding which must subsequently be trimmed and finished.
  這種設計的主要缺點是在塑件上畱下一個可見的痕跡，從而必須增加一道後續的脩剪和拋光的工序。
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