| 单词 |
mine radio telephone system |
| 释义 |
mine radio telephone system mine radio telephone system[′mīn ¦rād·ē·ō ′tel·ə‚fōn ‚sis·təm] (mining engineering) A communication system between the dispatcher and locomotive operators; radio impulses travel along the trolley wire and down the trolley pole to the radio telephone. |
| 随便看 |
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