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- The law of top coal movement on a fully mechanized longwall face with top coal caving wasanalysed thoroughly on the basis of field observation andfinite element calculation. 本文根据现场观测、数值计算以及理论分析,详细阐述了放顶煤采场的顶煤变形运动规律,指出了顶煤变形运动可划分成四个区:顶煤变形区,压裂区,松动区和放落区。
- Using modified distinct element method, simulation research is conducted on top coal movement at fully -mechanized working face in No2 Coalmine of Dayan Coal Bureau. 用改进的离散元法对大雁矿务局二矿综采放顶煤工作面顶煤活动规律进行模拟研究,分析支架围岩作用关系,找到顶煤丢失原因。
- NUMERICAL ANALYSIS ON TOP COAL MOVEMENT AND STRESS DISTRIBUTION IN MECHANIZED TOP CAVING MINING OF THICK COAL SEAM 厚煤层综放开采顶煤运移及应力分布规律的数值分析
- Study on Strata Behavior and the Top Coal Movement Law in Fully-mechanized Top-coal CavingFace in Thick Coal Seam With Dirt Band 含夹矸层厚煤层综放面矿压显现及顶煤运移规律研究
- A man of great ability like him will eventually reach the top. 像他这样才能出众的人终究会升到最上层的。
- She eyed me from top to top with coldness. 她冷淡地把我从头打量到脚。
- Can you reach the book on the top of the cupboard? 你能够到柜顶的那本书吗?
- Your room opens off the top landing. 你的房门朝向顶层楼梯平台。
- The top of the table was formed by a stone slab. 桌面是一块石板。
- I can't tell you the answer off the top of my head. 我不经考虑无法告诉你答案。
- A top hat is a rare sight these days. 高顶大礼帽现在已不多见。
- From the hill top we can see the plains below. 从山顶上我们可以看到山下的大平原。
- I like boots that lace up all the way to the top. 我喜欢带子一直能系到靴口的长筒靴。
- I put her in the top rank of modern novelists. 我把她看做是当代第一流的小说家。
- I saw the bird at the very top of the tree. 就在那棵树顶上我看到那只鸟。
- She (was) whisked up to the top floor in the lift. 她乘电梯迅速到达顶层。
- He peered at me over the top of his glasses. 他从眼睛的上沿注视着我。
- She peer at me over the top of her glasses. 她从眼镜上方盯着我看。
- She slip the paper over the table top to Marvin. 她将报纸从桌面上悄悄地递给马文。
- The girl was dressed in brown from top to toe. 那女孩从头到脚穿着一身棕色的衣服。