释义 |
Midfeather
Mid´feath`er
n. | 1.(Steam Boilers) A vertical water space in a fire box or combustion chamber. | | 2.(Mining) A support for the center of a tunnel. |
midfeather
midfeather1. See parting slip. 2. A longitudinal division or partition, as a withe in a chimney or as in a cased frame.
parting slip, midfeather, wagtailA long thin strip of wood in the box jamb of a cased frame which separates the sash weights from each other; also called a parting strip, parting bead. |