查询词典 contact rock

"Not to have control over the senses is like sailing in a rudderless ship, bound to break to pieces on coming in contact with the very first rock."

&不能控制你的感官就象是用无舵的船航行，注定要在遇到第一块岩石时，被撞成碎片&

The Yangtse River learns unity and coherence in writing academy more than 40 names students enthusiastically in the afternoon on October 24, autumn loafs about on precious Ta He county of neighbouring the Yangtse River Guanyin rock projecting over the water Sha Shi Duan sandy beach cooking a meal in the open. Shi more than 10 college student present is carried out immediately saved , one important more than ten students saw that the power is composed of the person ladder offal at that time rescuing people , still had a sum daughter schoolmate who can not swim for among them , thought that second children save quickly when going on shore in 14:15 or so , the incautious drop-in of 2 vicinity children river,the ladder has fallen apart , nine college students have fallen into water since the lack of physical strength prepares the subterranean flow , person, rescue hubbub slice immediately , happen to make contact with winter swimming sixty several old people the coming year rescue up six college students group, Two fall into water teenager has been rescued, but three heroes indistinct but ice-cold river water of submergence is already middle.

10月24日下午，长江大学文理学院40多名学生，在长江观音矶附近的沙市宝塔河段沙滩上秋游野炊。14时15分左右，附近2名儿童不慎落入江中，在场的10余名大学生立即开展施救，当时十几名大一学生见势组成人梯下水救人，其中还有不会游泳的和女同学，当第二个小孩快救上岸时，由于体力不支和暗流，人梯散了，九名大学生落水，顿时救喊声一片，正好碰上冬泳队几名六十来岁的老人救起六名大学生，两位落水少年获救了，而三位英雄已经沉入苍茫而冰冷的江水中。

By means of numerical solution method, drillstring's finite element models, and based on mechanical models of bit/rock interaction, the dynamic models for lateral vibration of a cone bit are established. The contact models of bit/wellbore interaction are created on the basis of the experimental data.

为探寻在实际钻井过程中钻头的运动轨迹和与井壁碰撞时撞击力的变化规律，利用有限元方法，建立钻柱横向振动的有限元动力学模型，并在考虑钻头-岩石互作用力学模型的基础上，建立了钻头横向振动动力学仿真模型，通过实验及相关数据得到预测钻头与井壁碰撞时撞击力大小的计算公式。

The force acting on the rock masses or massifs adjacent to each other is a contact force, also called surface force as it often functions on the border of the objects in a

相邻岩块或地块之间的作用力属于接触力。

Through the shallow hardening treatment,the steel T8A can have better contact-fatigue resistance to the repeatedimpactload-test and can be used for making the piston of rock drill.

经薄层硬化的T8A钢，可以获得较好的多冲接触疲劳抗力，故有可能作为凿岩机活塞用材。

Beginning with areal geologic background, the authors have discussed the features of quartz vein at Rujigou mining area Ningxia, such as lithology, contact correlation with wall rock, scales, space-time distribution, attitudes, assemblage, mineral inclusion, and have compared the quartz vein with the veins within other coalfields and coal measures.

笔者从地质背景入手，较详细的论述了汝箕沟矿区石英脉的岩性、与围岩的接触关系、规模、时空分布、产状、组合、矿物包裹体等发育特征，比较了该区石英脉与诸多煤田和煤系中脉岩的差异。

Based on the in-situ monitoring of Gonghe Tunnel and numerical simulation, the failure feature of layered rockmass was analyzed; and the results show that the surrounding rock deformation and displacement, contact pressure and fracture zone mainly exist on the right side of the tunnel vault, that is, the side near the river is larger than that near the mountain.

结合共和隧道现场监测和数值模拟相结合的方法对层状岩体的破坏特征进行了分析，研究结果表明：围岩的变形位移、破坏区都主要集中隧道拱顶右侧，即靠河侧大于靠山侧。

To obtain both construction security and the feasibility in tunnel engineering, and to understand the contact mechanism in these complex cutting cases, this numerical approach simplifies normal wedge cutter indented into intact rock for simulating the process of fragmentation using a two-dimensional tool of distinct element method, so-named PFC2D.

故本研究以分离元素法之二维数值软体PFC2D为本；进行模拟楔形刃口正向贯入岩材之接触破坏行为，以数值耦合（PFC2D＆FLAC）之方式，先就单压及巴西试验作校验，再应用於贯切破坏之模拟，并比对贯切行为之理论模式与相关实验数据，俾能提供隧道工程与地下管道机械开挖之安全性与施工效率探讨之佐证。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。