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If an acetylene cylinder receives a sharp or deep dent, the metal is gouged, or any other mechanical defect, circle the defect with a marking pen to alert the supplier of the defect.

如果乙炔钢瓶有尖锐或深的凹陷，金属被凿，或任何其它机械缺陷，用记号笔在缺陷处画个圆来警告供应商。

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And relabel the cans with a marking pen to list their contents and any dates when the foods are best used by.

VOA: special.2010.07.19

Take the fattest marking pen you have, scratch that out and replace it with atomic hydrogen.

用你最粗的笔把它划掉，再用氢原子代替它。

麻省理工公开课 - 固态化学导论课程节选

He did not draw the skin incision to be made with the sterile marking pen the way the other professors did.

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Using an easel and a marking pen to illustrate his point, Gingrich said the Republican plan actually called for substantial increases in those two programs.

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First, acquire some sort of marking device: pen, pencil, charcoal or gouging stick.

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