查询词典 rock-bottom

Cutting discontinuities's 3-D model could get cutaway view and date directly on AutoCAD plat, it will be good for research instability clastic mass. The author select rock mass from damsite in Laxiwa hydroelectric station as object to which information processing system on rock mass structure is applied.

通过结构面的数学建模，使采集所得结构面数据的处理实现了信息化，程序化，应用多功能数据库在计算机上人机交互划分岩体结构，初步实现岩体结构的信息化，并且通过结构面与相关实体的真三维实体模型的建立，既可清晰直观的展示结构面模型的空间形象，又可容易的切割模型并获取切图的数据，对不稳定块体的分析研究提供了强有力的辅助手段。

The ESEU website includes information about ESEU activities. Worksheets for teaching earth sciences at key stages 3 and 4, used in INSET training, are available from the site. The documents (in PDF format, requiring Adobe Reader) cover topics such as the rock cycle, rock identification, the changing Earth and atmosphere, plate tectonics and outdoor activities. Resources available on the site include: a virtual rock kit with images of sedimentary, igneous and metamorphic rocks; links to related sites; and recommended textbooks.

网站内容包括机构信息及活动信息介绍、地球科学教学第三和第四阶段工作表内容介绍、网上地球科学培训资料、免费文件全文内容（主题涉及到岩石圈、岩石鉴别、地球表面及大气层变化、板块构造论以及各种室外活动等内容，为pdf格式）以及相关的资源（包括各种沉积岩、火成岩及变质岩照片、相关网站链接以及一些推荐教科书）等内容。

Owing to inborn high temperature and high pressure gas after blasting and complexity of dynamic principal relationship and interact ional complexity between dynamite and rock and non-equal character and anisotropies of rock, the rock blasting mechanism research is quite complex.

该过程由于炸药爆炸后生成的高温、高压气体产物和岩石动态本构关系的复杂性，炸药与岩石之间相互作用的复杂性，以及岩石本身的非均质性和各向异性等使得岩石爆破机理的研究显得十分复杂和困难。

Laxiwa Hydropower station is located in a high mountain valley and narrow valleys, where the regional geostress field is higher. Besides, local existence of tectonic fracture zone and size of large-scale excavation are common phenomena in this project. The surrounding rock of hydropower plant is mainly granite, which are hard and brittle rock, this kind of rock is very detrimental to the stability of the cavern.

拉西瓦水电站厂房地处峡谷山高坡陡，河谷狭窄，区域地应力场较高，局部存在构造破碎带，同时开挖尺寸规模巨大，围岩主要为脆硬的花岗岩，对洞室稳定极为不利。

The mantle of original rock is the base carbonate rock and transition rock.

这套组合现已公认为古风化壳成矿的陆相沉积矿床[1～ 2 ] 。

Bulk rock chemistry of Hujialing garnet clinopyroxenite in Rizhao of the Sulu ultrahigh-pressure metamorphic belt is rich in fusible composition and low in refractory composition when compared with that of the primary mantle. Whole rock has 44.04%~50.50% SiO2, high MgO(12.77%~18.73%), high GaO/Al2O3 (1.6~8.0), low alkali and Mg(superscript #)(74.82~86.13), which shows that the rock has an affinity to alumina-depleted komatiite.

与原始地幔相比，苏鲁超高压变质带的日照胡家岭石榴单辉辉石岩体全岩化学成分易熔组分均较高，而难熔组分均较低，全岩的SiO2含量为44.04%~50.50%，高MgO(12.77%~18.73%)，高CaO/Al2O3(1.6~8.0)，低碱，Mg的变化范围为74.82~86.13，成分特点类似铝亏损型科马提岩。

Considering the slope features, location of the tower, size and quantity of potential unstable rock mass on the slope surface, and the size and quantity of the rock blocks at the slope toe, a feasible risk assessment method is put forward based on the energy of the rolling rock block reaching the tower, and the frequency of rockfalls.

从影响滚石击中塔体时的能量以及塔体被滚石击中的可能性出发，提出现场评价危岩对塔体威胁等级的方法。该方法考虑了边坡形状、塔位与山体的相对位置、坡上危岩的数量和大小以及坡脚滚石的数量和大小等因素。

We divide bedrock rock types in the middle and late Proterozonic Era as well as the Archaean Era into three types ,which are metamorphic rock ,deposition rock and the igneous dike.

将西部低潜山带中晚元古代和太古宙基岩岩石类型划分为变质岩、沉积岩和火成岩脉三大类。

Minimum rock cover thickness is obtained according to the Norwegian rock cover curve with sea water depth and the Norwegian rock cover curve with bedrock depth.

根据舟山灌门水道海底隧道地质纵断面图，选择控制垂直线路走向的3个分析断面，应用挪威经验得到相应分析断面的最小岩石覆盖厚度。

Although I'm just a guest editor, I still aspire to be the only "three nevers" editor in the history of So Rock: one who has never bought So Rock, never delved into rock music, and who has never associated with musicians.

虽然我只是一个客人的编辑，我仍然渴望成为唯一的&三玩&编辑器上的岩石：所以从未买这么岩石，从不对摇滚乐，并没有伴随的音乐家。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。