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- In flat dip layer, the seam thickness control the stability of the wall rock, the thick-bedded hard rock is stable than the thin-bedded hard rock. 岩层厚度在缓倾斜时对围岩稳定起控制作用,厚层硬岩整体稳定性好于薄层状硬岩。
- Using numerical value test based on the wave velocity function of the transverse isotropic elastic medium, the two effects are validated. 从横观各向同性弹性介质的波速方程出发,通过具体的算例对这两种特征进行了较好的理论分析。
- Then a 2D velocity function was used to approximate the velocity distribution of entrained flow to simplify the fundamental equation. 然后用一个二维函数来近似引射流的速度分布,对导出的基本方程进行简化;
- By treating the rock as the transverse isotropic elastic medium and using numerical test of the wave velocity function, the property is theoretically validated. 基于横观各向同性弹性介质的波速方程,还进一步通过具体算例对这特征进行较好的理论分析。
- Application of caving mining technology with bottom under condition of flat dipping mid-thick body and unstable rock caused the most of trench and bottom drift, located in abutment , to be destroyed and low recovery in south area, Xishimen Iron Mine. 摘要在缓倾斜中厚矿体底板岩性不稳固的条件下,采用有底柱崩落法,由于电耙道大多处于空区边部应力集中的部位,致使堑沟及底部结构巷道破坏严重而使回收率极低,采用无底柱崩落卸压则可有效解决上述难题。
- On a hot day a dip in the sea is sheer paradise. 热天洗个海水澡是十分令人惬意的事。
- The man jacked up his car to fix a flat tire. 那人用千斤顶把他的汽车顶起以修理漏气的轮胎。
- He stumbled over a stump and fell flat on his face. 他给树桩一绊,摔了个嘴啃泥。
- He spread the map flat out on the floor. 他把地图平铺在地上。
- It's time for my dip in the tub. 我该洗澡了。
- Dip your injured finger in the disinfectant to soak out the poison. 把你受伤的手指浸在消毒剂里,把毒浸泡出来。
- Our present lease on the flat expires next month. 我们这套公寓的租约下月到期。
- Gazelles can move with astonishing velocity. 羚羊跑起来速度惊人。
- We are going for a dip in the sea. 我们去洗个海水浴。
- The flat will be refurbished for the new tenants. 这套房间将重新粉刷以接纳新房客。
- He hollowed out a small dip in the ground. 他在地上挖出了一个小坑。
- She is buying a flat close to her office. 她正在购买一套靠近她办公室的单元房。
- The road takes a dip round the corner. 那条路在转角处往下倾斜。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- She lay flat on her back in the warm sunshine. 她在温暖的阳光下平躺著。