An initial source of energy or activity; spec. a machine which converts a natural source of energy into mechanical energy.
| 单词 | θ76083 |
| 释义 | the world > matter > physics > energy or power of doing work > [noun] > capacity for exertion of mechanical force > motive power or force > initial source of (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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