| 单词 |
saddleback joint |
| 释义 |
DictionarySeeSaddle jointsaddleback joint
saddle joint  saddle joint 1. A stepped joint in a projecting masonry course or in a coping; used to prevent the penetration of water. 2. A vertical joint in sheet-metal roofing; formed by bending up the end of one sheet and folding it downward over the turned-up edge of the adjacent sheet.MedicalSeesaddle joint |
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