单词 | trimmer |
释义 | trimmer [`trim·ǝr] BUILDING CONSTRUCTION One of the single or double joists or rafters that go around an opening in the framing type of construction. MINING ENGINEERING 1. A piece of bent wire used to regulate the size of the flame of a safety lamp without removing the top of the lamp. 2. A worker who arranges coal in the hold of a vessel (miner, ship) as the coal is discharged into it from bins. 3. A person who cleans miners' lamps. 4. An apparatus for trimming a pile of coal into a regular form (as a cone or prism). 5. See <<rib hole>> |
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