您要查找的是不是：
- By similarity simulation experiment, we analysis the mining-induced fracture distribution and permeability of coal and rock mass near protective layer mined by speckle method. 阐述了含瓦斯煤的力学特性：通过相似模拟实验，用散斑法对保护层开采过程中来动裂隙分布规律及煤岩体的渗透性进行了分析。
- Research on the protection scope and result of protection layer mining 保护层开采的保护范围和效果的研究
- He went heels over head into buying mining stock. 他购买了矿业股票，做事真鲁莽。
- Exploration rtsearch on the corer rock destruction in thick seam layer mining 厚煤层分层开采覆岩破坏探测研究
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- Discussion on Foresupport Range of Short-range Seams of Lower Layer Mining 近距煤层下层煤开采超前支护距离探讨
- Layered gravel and charcoal to make a filter. 将砂砾和木炭分层以做成过滤器
- This area depends on the mining industry. 这个地区以采矿业为经济基础。
- He tried gold mining, pearling and fur trapping. 他尝试过淘金，采珍珠和猎兽皮。
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- He was trained there as a mining engineer. 他在那里被培养成一名采矿工程师。
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- Keywords protective layer mining;RFPA-GAS;numerical simulation;destress; 保护层开采;气固耦合模型;数值模拟;卸压;
- The middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
- The bottom layer is a mixture of sand and clay. 最下面的一层是沙和泥的混合物。
- The broker claimed that mining shares had moved up to a new level. 经纪人声称，矿业股票的行市已上升到新的水平。
- A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
- Earth, rocks, or clay excavated in mining. 废石在采矿过程中挖掘的土、岩石或粘土
- A layer, as of doubled-over cloth or of paperboard. 一层一层，如折叠过的布料或纸板的
- A surface, layer, or mass of frozen water. 冰面冻结的水的面、层或块
