impact driven pile

• 1. 冲划: impact driven pile
• 2. 深冲划伤: draw mark
• 3. 深冲表面划伤: scuffing

更多释义

• 1.通过与邻区对比，元江地区的上三叠统应划属滇东南地层区，与火把冲组对比。
  According to the correlation with nearby areas, the Upper Triassic in Yuanjiang must be divided into the Southeast Yunnan stratigraphic region, correlated to Huobachong Formation.
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• 2.新型多用刀头能快速地使用和更换固定裁刀、振动裁刀、划针、冲头、画笔等工具。
  New types of multipurpose cutter heads capable of quickly using and replacing fixed cutters, vibration cutters, threads, punching heads and drawing pens and other tools.
  dict.yoduao.com

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