資料來源 : pyDict

棟梁

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Ridgepole \Ridge"pole`\, n. (Arch.)
   The timber forming the ridge of a roof, into which the
   rafters are secured.

資料來源 : WordNet®

ridgepole
     n : a beam laid along the ridge of a roof; provides attachment
         for upper end of rafters [syn: {ridge}, {rooftree}]