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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。

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。

According to various of the technical difficulties such as low drilling efficiency in hard rock and short service life of diamond drilling bit, analysis was made on the inherent links between blade-extruding of hot-pressing diamond and rock abrasiveness.

中文摘要：针对在坚硬致密岩石中钻进时效低和钻头使用寿命短的技术难题，分析了热压钻头的金刚石出刃与岩石研磨性等岩性之间的内在联系，认为钻头的胎体成分及其性能是关键，硬而带脆性的胎体性能有利于金刚石出刃，从而能提高钻进速度。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48