(a) Mechanics = keyway n. (a) (now rare); (b) Geology = marker bed n. (a) at marker, n. compounds 2.
| 单词 | θ214469 |
| 释义 | society > occupation and work > equipment > machine > parts of machines > shaft > [noun] > parts of > key > part on which key rests (2) key bed1835 (a) Mechanics = keyway n. (a) (now rare); (b) Geology = marker bed n. (a) at marker, n. compounds 2. key seat1843 = keyway n. (a). |
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