touchhole

常见例句

• Flash in the pan, an explosion of gunpowder without any communication beyond the touchhole.
  池内火花，火药爆炸，却未到达枪口外。
• they apparently were fired by applying a red-hot wire to a touchhole drilled through the top.
  ）类似旧式汽水瓶，显然经由连至顶部火门的红热导线而发射。
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