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- The caving of thick and strong roof stratum,key stratum,causes tremendous rock pressure in mine. 采场上覆岩层中的厚硬岩层,即厚硬关键层,其冒落会造成剧烈的矿山压力显现。
- Investigation into the law of movement of roof stratum at the face,when a shortwalling system to the dip or along the strike of applied,is made with finite element and me- chanical methods. 本文通过分析水采和旱采顶板运动的特点 ,采用有限元及力学的方法研究了水采工作面沿倾向与走向的顶板运动规律。
- The paper regards the main roof strata in uphill and downhill mining of an inclined longwall as a elastic plate. 本文将倾斜长壁仰斜、俯斜开采的老顶岩层视为倾斜弹性板。当板的长短跨度之比＞2时，板的荷载主要由短跨边来承担。
- Study on the Broking Mechanism of Roof Stratum of Coal Seam 煤层顶板破断机理研究
- She and I can't live under the same roof. 她和我不能住在一起。
- A detection method of roof strata structure is put forward and the application of the method in Guhanshan coal mine in Jiaozuo is introduced. 提出了一种顶板岩层结构探测方式,介绍了该探测方式在焦作古汉山煤矿应用的情况。
- For the unloading effect, the arching mechanism in the roof strata is weakened, and the probability of catastrophic collapse exists in roof strata above the milling zone. 由于边坡的卸荷作用，导致采场上覆岩层成拱机制减弱，采空区覆岩存在整体垮冒的可能性。
- The stone made a dent in the roof of my car. 我的汽车顶让石头砸了个坑。
- Snipers shot at the invaders from the roof tops. 狙击手从房顶上向侵略者射击。
- The rain water drips from the roof. 雨水从屋顶滴下来。
- During the gale roof tiles came hurtling down. 在暴风中屋顶的瓦片哗啦啦地落了下来。
- Can you shoot up at the bird on the roof? 你能射中房顶上的那只鸟吗？
- The pillars have to support the weight of the roof. 这些柱子须承受屋顶的重量。
- The rain drip down from a leak in the roof. 雨水从屋顶的裂缝中滴漏下来。
- The rain is leaking in large drop through the roof. 雨正大滴大滴地从屋顶漏下来。
- The roof slopes towards the back of the house. 屋顶向屋子的背面倾斜着。
- The roof of our house is covered by shingles. 我家的屋顶是用木瓦铺的。
- She hoicked her bike onto the car roof. 她猛地一下把自行车举到汽车顶上。
- They represent each society stratum. 他们代表各个社会阶层。
- Rain has worked in through the roof. 雨水透过房顶逐渐渗进屋子里。
