jack rafter

短语

词形变化

jack rafters 复数 jack rafters

释义与例句

n.
  1. 1.

    One of the shorter rafters used in constructing a hip roof.

    英国
  2. 2.

    Any secondary roof timber, such as the common rafters resting on purlins in a trussed roof; also, one of the pieces simulating extended rafters, used under the eaves in some styles of building.

    美国