| 单词 | 可穿过 |
| 释义 | 〔bolt〕A fastener consisting of a threaded pin or rod with a head at one end, designed to be inserted through holes in assembled parts and secured by a mated nut that is tightened by applying torque.螺栓：一种由可穿过的栓或竿构成的条形紧固器，一端有头，用于插进集合部分相应的孔，再用配对的螺帽旋紧 |
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