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| 溜矿道｛矿｝ | |||
| 溜井以自然下落方式运输所采矿石的小立井,也叫漏斗天井。参见 chute；draw shaft | |||
| 矿道; 溜矿井; 放矿溜井; 放矿溜道 | |||
| English thesaurus | |||
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| inclined mining excavation for transporting ore (MichaelBurov) | |||
| ore pass: 1 phrase in 1 subject |
| Technology | 1 |
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