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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. 岩層厚度在緩傾斜時對圍岩穩定起控制作用,厚層硬岩整體穩定性好於薄層狀硬岩。
- Using numerical value test based on the wave velocity function of the transverse isotropic elastic medium, the two effects are validated. 從橫觀各向同性彈性介質的波速方程出發,通過具體的算例對這兩種特徵進行了較好的理論分析。
- Then a 2D velocity function was used to approximate the velocity distribution of entrained flow to simplify the fundamental equation. 然後用一個二維函數來近似引射流的速度分佈,對導出的基本方程進行簡化;
- By treating the rock as the transverse isotropic elastic medium and using numerical test of the wave velocity function, the property is theoretically validated. 基於橫觀各向同性彈性介質的波速方程,還進一步通過具體算例對這特徵進行較好的理論分析。
- 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. 摘要在緩傾斜中厚礦體底板岩性不穩固的條件下,採用有底柱崩落法,由於電耙道大多處於空區邊部應力集中的部位,致使塹溝及底部結構巷道破壞嚴重而使回收率極低,採用無底柱崩落卸壓則可有效解決上述難題。
- On a hot day a dip in the sea is sheer paradise. 熱天洗個海水澡是十分令人愜意的事。
- The man jacked up his car to fix a flat tire. 那人用千斤頂把他的汽車頂起以修理漏氣的輪胎。
- He stumbled over a stump and fell flat on his face. 他給樹樁一絆,摔了個嘴啃泥。
- He spread the map flat out on the floor. 他把地圖平鋪在地上。
- It's time for my dip in the tub. 我該洗澡了。
- Dip your injured finger in the disinfectant to soak out the poison. 把你受傷的手指浸在消毒劑里,把毒浸泡出來。
- Our present lease on the flat expires next month. 我們這套公寓的租約下月到期。
- Gazelles can move with astonishing velocity. 羚羊跑起來速度驚人。
- We are going for a dip in the sea. 我們去洗個海水浴。
- The flat will be refurbished for the new tenants. 這套房間將重新粉刷以接納新房客。
- He hollowed out a small dip in the ground. 他在地上挖出了一個小坑。
- She is buying a flat close to her office. 她正在購買一套靠近她辦公室的單元房。
- The road takes a dip round the corner. 那條路在轉角處往下傾斜。
- Lashing velocity of pump is concerned with nature of air. 泵的抽氣速率與氣體的性質有關。
- She lay flat on her back in the warm sunshine. 她在溫暖的陽光下平躺著。