查询词典 rock-bottom

In this paper, micro-rock mining in the breakdown of elastic waves generated by the information source, application of rock mass elastic wave and the related breakdown of the theory and technology, to explore unknown goaf water accumulation and nucleation process, found the exact elastic wave velocity than the VP / VS, the amplitude ratio VSH / VPH, spectral, waveform, and frequency of abnormal microseism.

本文以采动岩体微破裂产生的弹性波为信息源，应用弹性波与岩体破裂的相关理论与技术，探索地下采空区不明水体的蓄积和成核过程，发现存在确切的弹性波波速比VP/VS、振幅比VSH/VPH 、波谱、波形以及微震频度的异常。

Authors gave the minimum rock covering thickness with comprehensive consideration of stability of surrounding rock and tunnel seepage volume.A...

提出应从围岩稳定性和隧道涌水量的大小综合考虑最小岩石覆盖层厚度；采用限量排放的防排水方案对海底隧道较为适宜；施工中可采用注浆和冻结法穿越海底的不良地质段；设置服务隧道有利于隧道施工和运营管理。

At the real life School of Rock a group of misfit kids get in touch with their inner rock star.

现实生活中的《摇滚学校》，一群装束不合时宜的小子与心目中的摇滚明星接触。

But the geological and geochemical analyses showed that there existed a set of high quality marine source rock in the platform slope facies of Middle Ordovician Pingliang Formation. The oil and gas generated from the source rock of Pingliang Formation was accumulated firstly in the central Palaeo-uplift and its surrounding regions. The thermogenic asphalt in palaeo-uplift carbonate reservoir indicated that oil accumulation completed transition from oil to gas in the Lower Crataceous. Along with the palaeo-uplift axis convection and the formation of westward monocline in the Late Crataceous, gas from the palaeo-reservoir was finally accumulated in the weathering crust of Majiagou carbonate reservoir.

地质和地球化学分析证实，盆地西、南缘台缘深水斜坡相的中奥陶统平凉组存在优质海相烃源岩，其形成的油气最早富集在中央古隆起及其周围；伴随着中央古隆起带轴部的向东迁移和早白垩世末盆地西倾大单斜的定型，平凉组烃源岩在早白垩世生烃高峰期生成的天然气和早期古油藏裂解气，由中央古隆起带向北东方向发生二次运聚，最终在盆地中部奥陶系马家沟组风化壳中聚集成藏，即形成靖边大气田。

Firstly, the stope vacancy was monitored using CMS, taking cavity measured data as foundation, cavity three-dimensional model of the stope opening was created using Surpac software and gain the stope three-dimensional configuration and the actual boundary accurately. Then, the stope designed model and ore-rock interface digital terrain model were established according to the stope design material. Finally, using ore-rock interface DTM to cut cavity model or through Boolean calculation among the models, ore remains, mining total volume, mullock, backfilling, pure ore and dilution rate of stope N3-4 were calculated accurately, thus the large-scale stope mining index visible calculation was realized effectively.

采用CMS探测三维采场空区，以空区实测数据为基础运用Surpac构建采空区三维可视化模型，获取采场空区的三维形态和实际边界；运用采场设计资料，建立采场回采设计模型及矿岩边界模型，通过模型间的布尔运算，计算出采场存留矿量、回采总体积、采下废石量、采下充填体量、采下纯矿石量、回采总量及回采贫化率等，从而有效地实现了大规模采场回采指标的可视化计算。

The paper derives detailly the viscoplastic strain velocities of joint, intact rock, as well as multilaminate rock mass corresponding to different stress states, and presents a viscous elastoplastic F·E·M·with consideration of the stepwise excavation sequence and different supporting time of lining in underground works with large cross-section.

分别推导了在不同应力状态下节理面、完整岩石和多组节理岩体粘塑性应变速率的计算公式。提出了节理岩体大断面洞室考虑分步开挖和不同支护时间的粘弹塑性有限元数值方法。

This rock can be called mylonite because the relatively coarse augen and ribbon grains account for 40% of the entire rock.

这种断层岩被称为糜棱岩，因为那些颗粒相对稍大的眼球和条带状矿物的含量占整个岩石的40%。

On the basis of comparison of engineering properties of domestic and foreign Neogene muddy deposits, in the view of whole globe and associated with the geological characteristics of China, the paper demonstrates that the intermediate type of the material between the soil and the rock, named "hard clay/soft rock", which can not be separated abruptly, really exists in China.

本文在国内外上第三系泥质沉积物工程特性对比的基础上，从全球观念出发，结合中国的地质特点，提出在中国确实存在着难以一刀切的过渡类型——"硬土/软岩"，并根据其地质成因和分布规律进行了初步分类，这对于促进工程地质学、土力学和岩石力学的融合具有重要意义。

The paper presents distribution of nepheline syenites and theirtectonic settings, rock assembladges, mineral associations and geochemisical characteristics, discusses the relationship between the minerological characteristics of main minerals and their host rock.

文摘：介绍了中国霞石正长岩的分布、产出的大地构造环境、岩体的岩石组合、岩石的地球化学和造岩矿物组合特征。

In 1987 base, in Shangrila 3 county dams fit west clan national town eastern dam village public place site Cheng day the nitre factory of village Luo , coloured lucky foot and you evidently , 4 in vain cloud gulf places have discovered plenty of color rock drawings, this is Dian the rock drawing of northwest area first discovery.

有关专家认为，渣日村北依四川省木里县俄亚纳西族民族乡，东临丽江纳西族自治县奉科乡，南接丽江县大具乡，这些乡村都是纳西族聚居区，所以渲日岩画的发现无疑为研究纳西族地区社会历史及东巴文化的起源提供了宝贵的实物依据。

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。