bourrelet

名词 n.
中文释义

英文释义

名词 n.
  1. An accurately machined portion around the diameter of a shell of a gun, which acts to increase accuracy of projectile fit to the barrel.
    — The bourrelet is a slightly raised surface on the rocket designed to maintain a light contact with the inside of the launching tube to center the rocket when fired.
  2. An escoffion.
  3. A raised rim around a footprint consisting of sediment displaced by the pressure of the step.

词形变化

bourrelets plural

词汇关系

并列词
driving band ogive

词源

Etymology tree
French bourreletbor.
English bourrelet
Borrowed from French bourrelet.
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