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- drilling character of rock 凿岩性
- The nccessity and urgency of PDCbit downhole folw field testing are demonstrated according to the character of PDC bit structure,principle of rock fracturing and circumstances of using in drill sites. 根据PDC钻头的结构特点、破岩原理及现场使用情况，阐明了进行PDC钻头井底流场试验研究的必要性和迫切性。
- Point out that instability destruction of bluff stratum slope has osculating correlation with the rheology character of rock. 摘要指出层状直立边坡的屈曲失稳与岩体的流变性质密切相关。
- WU Jing-nong.Permeability of rock in crust and the influence of water at aperture on the character of rock mechanics[J].South China Seismologic Journal,1990,10(3):77-82. [3]吴景浓.;地壳岩石的渗透性状及孔隙水对岩石力学性质的影响[J]
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- The mountain rise up in a steep wall of rock. 这座山高而陡，形成一道岩石屏障。
- The mountain rose up in a steep wall of rock. 这座山高而陡，形成一道岩石屏障。
- Considering the dynamic character of rock burst, the construction non-linear dynamic model of rock burst is studied by evolutionary neural network based on immunized evolutionary programming. 考虑到冲击地压的动力学特点,采用基于免疫进化规划的进化神经网络,进行了冲击地压非线性系统的建模研究。
- A spur of rock stuck out from the mountain. 山背上突起一个石脊。
- They drill through several layers of rock to reach the oil. 他们钻透了几层岩石以寻找石油。
- The positive or negative character of a proposition. 命题的性质命题的肯定或否定的性质
- They drill through several layer of rock to reach the oil. 他们钻透了几层岩石以寻找石油。
- The result shows that the most important factor of bank rebuilding is types and characters of rock and soil. 计算结果表明，组成岸坡的岩体类型、性质是决定库岸再造的最主要因素，地形地貌因素次之。
- He managed to hang on to a piece of rock protruding from the cliff. 他设法抓住了悬崖上向外伸出的岩石。
- Hamlet endued the character of a madman. 哈姆雷特装疯卖傻。
- They drilled through several layers of rock to reach the oil. 他们钻透了几层岩石以寻找石油。
- The state or character of being promiscuous. 混乱，杂乱混乱的状态或特点
- A fall of rocks blocked the road. 掉落的岩石把路封住了。
- Pieces of rock plummeted down the mountainside to the ground below. 岩石一块块顺著山的陡坡滚落到地面。
- The future character of the Republic is in the air. 共和国的未来性质尚在未定之天。
