| 单词 | 杆状物 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔spline〕Any of a series of projections on a shaft that fit into slots on a corresponding shaft, enabling both to rotate together.花键：杆状物上的一系列凸起物，与相应杆状上的狭槽相吻合，可以咬在一起旋转美国传统〔water key〕A lever covering a small hole on certain brass instruments, such as the trombone, that is pressed to drain saliva that has accumulated in the instrument.乐器排水口：盖住诸如长号等某些铜管乐器上小孔的杆状物，可以压下，以排出乐器中积下的口水美国传统 |
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