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- coal dropping bed 落煤床
- SZ), now had to face the agony of coal dropped. SZ),如今不得不面对煤价大幅下跌的苦恼。
- The measures against coal arch camber in planomural coal bin and coal drop pipe are proposed by analyzing practical cases. 通过实例分析,提出了解决煤仓及落煤管落煤起拱的措施。
- The influencing factors of coal arch camber in planomural coal bin and coal drop pipe with rectangular or circular cross section during coal drop are studied theoretically. 摘要对落煤过程中平壁煤仓及截面形状分别为矩形、圆形的落煤管起拱的影响因素进行理论研究。
- Study on Comprehensive Fire Preventing and Extinguishing Technique of Simple Cutting Top Coal Dropping of Complicated and Difficult Cutting Coal Bed with High Gas 复杂难采高瓦斯煤层简易放顶煤开采综合防灭火技术研究
- The Fracture Analysis of 125 chain of the chain-bucket coal drop 链斗式卸煤机125链条断裂分析
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- A coal miner's work is not a bed of roses. 煤矿工人的活计可不轻松。
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- We have enough coal to see the winter out. 我们有足够的煤过冬。
- They eked out their coal by collecting firewood. 他们拣拾木柴以补充煤的不足。
- We had a big delivery of coal today. 今天我们收到大批订购的煤。
- Pile on more coal the fire is going out. 火快灭了,再加上些煤。
- What can we do with the bituminous coal? 这些烟煤可以用来做什么?
- A coal miner's job is not a bed of roses. 煤矿工人干的可不是舒服惬意的工作。