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解释把有价值的煤从地壳中挖掘出来
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英语excavate coal
1. 爷爷在年轻时是一名采煤工人，每天辛苦劳作。
2. 为了提高采煤效率，工人们正在研发新的采煤技术。
3. 采煤过程中，安全问题是必须要重视的。
4. 随着科技的发展，采煤行业也在不断进步。
5. 我们应该关注采煤工人的权益，保障他们的工作环境。
excavate coal-采煤;
coal mining-煤矿开采; 采煤;
coal extraction-回采; 采煤;
coal cutting-采煤;
1.At one time they used to mine coal in these valleys.
从前他们在这些峡谷中采煤.
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2.Formerly the coal was dug with picks and spades.
从前用镐和铁锹采煤.
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3.Robert and Slogger were still cutting coal when David reached them.
当大卫到达罗伯特和斯洛格跟前时,他们还在采煤.
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4.These men work underground for 6 hours a day, mining for coal.
这些人每天在地下采煤6小时.
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5.They were mining for coal / gold.
他们在采煤(金).
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6.Rich in coal resources, mainly coal - mining town and township enterprises.
煤炭资源丰富, 乡镇企业以采煤为主.
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7.Coal is mined under nappe in Xinji Mine area.
新集矿区是从推覆体下采煤.
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8.Finally hydromining method, an inareawere found through comparison between various mining methods.
通过多种采煤方法的试验 、 比较后,找到了一种对复杂煤层适应性较强的采煤方法——水力采煤方法.
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9.These men work underground for 6 hours at a time, mining coal.
这些人在地下采煤,一次要连续工作6.小时.
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10.Borehole hydromining is a kind of safe and efficient new mining method.
钻孔水力采煤是一种既安全、又能极大地提高资源利用率的新的采矿方法.
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11.Its successful selection and application are the prerequisite for successful longwall mining.
正确、合理地选择液压支架架型是长壁工作面采煤成功的前提和关键.
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12.The bottom of it's working face contact with the seam inundation directly.
主采煤层底板与充水岩层直接接触,充水岩层内部连成一体且与外部水力联系密切.
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13.Township enterprises in trade , in commerce, mining, coking, quarrying, food service industry.
乡镇企业有商贸 、 采煤 、 炼焦 、 采石 、 饮食服务业.
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14.The company envisioned opening the sides of two mountains to extract coal.
这家公司打算挖开两座山的山坡采煤.
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15.There are many drab houses in the Smokey mining town.
在这个采煤的小镇上有许多黑褐色的房子.
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