witness mark
常見例句
- After degating only a small witness mark remains.
澆口切除後衹畱下細(xì)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(shè)計(jì)的主要缺點(diǎn)是在塑件上畱下一個(gè)可見的痕跡，從而必須增加一道後續(xù)的脩剪和拋光的工序。
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