pilot hole

短语

导孔；导向钻孔；定位孔

词形变化

pilot holes 复数

别名

pilot-hole

释义与例句

n.
  1. 1.

    A narrow hole drilled or punched into a surface, to facilitate the insertion of a wider screw, nail, drill bit, or other boring tool.

    1970, Andy Lang, "Right Nail Hits the Spot," St Petersburg Times, 25 Oct., p. 5-G (retrieved 7 Dec. 2008), Nothing prevents splitting the wood as much as first driving a pilot hole, especially for hard wood.