An initial source of energy or activity; spec. a machine which converts a natural source of energy into mechanical energy.
| 单词 | θ214205 |
| 释义 | society > occupation and work > equipment > machine > machines which impart power > [noun] > which modify power (1) prime mover1795 An initial source of energy or activity; spec. a machine which converts a natural source of energy into mechanical energy. |
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