The _______ is responsible for coal lifting in multi- shaft areas development.
The _______ is responsible for coal lifting in multi- shaft areas development.
发布时间：2025-11-10 06:30:09
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答案：main shaft
相关试题
- 1.The _______ is responsible for coal lifting in multi- shaft areas development.
- 2.The shaft is divided into skip shaft, cage shaft and according to lifting container.
- 3.What are the characteristics of shaft layout in non coal mines?
- 4.Which of the following options is the shaft used to raise coal?
- 5.R&D Department is responsible for new product development.
- 6.multi-
- 7.多边的： multi-
- 8.The prefix “multi-”means .（ ）。
- 9.drive shaft drive shaft
- 10.In mountain areas, shallow coal seams are opened up for adits.When there are more reserves below the
