查询词典 rock-bottom

Shandong Rock Drilling Tools Factory Co., Ltd. was founded in 1993, is a rock-drilling and mining brazing equipment research and production of professional businesses, are "high-tech enterprises in Shandong Province","state-level Torch Program project implementation unit,"" China Patent Shandong Star Enterprise "," Chinese famous brand of township enterprises of key enterprises "," AAA "grade credit enterprise, the country's largest production base of the first solder, the overall strength ranks with the industry-leading position nationwide.

山东凿岩钎具厂有限公司始建于1993年，是凿岩钎具和矿用机具研究和生产的专业企业，是&山东省高新技术企业&、&国家级火炬计划项目实施单位&、&中国专利山东明星企业&、&中国乡镇企业创名牌重点企业&，&AAA&级信用企业，全国最大的钎头生产基地，整体实力位居全国同行业领先位置。

How to achieve the most efficient rock-breaking is the research direction of the rock-breaking technique.

在不同泵压和淹没压力条件下，针对不同类型的空化喷嘴对高压空化水射流破碎岩石效果进行了一系列实验研究，其主要目的是探讨高压空化水射流的冲蚀能力与水力参数的相互关系，提高破岩效率。

Based on the mutual effect between PDC cutter and rock during the rock-breaking, the analytical approach of rubbing contact finite element is given.

PDC具有很高的硬度和耐磨性，作为高效切削元件被广泛地用于破碎岩石。

This is because the jet particle velocity of the swirling water jet is three-dimensional, and its rock-breaking manner mainly has a slopping impact. Thus, the interference from returning fluid is less. All these aspects make it easy to draw and shear the rock surface.

计算结果与试验一致，表明旋转射流具有较强的破岩能力，其原因是旋转射流的质点具有三维速度，破岩时以倾斜冲击为主，易于在岩石表面形成拉伸和剪切破坏，回流的干扰较少。

Combining the performance of the formation rock mechanics with the rock-breaking mechanism of the PDC bits, the PDC bits suitable for the combination driving drilling in the northeastern Sichuan were selected.

通过对地层岩石力学特性的研究，结合PDC钻头的破岩机理，筛选出了川东北地区适合于复合钻井的地层。

The heat insulation materials of the XPS of which decrease embankment height, thermal pipes setup in sun-facing side of embankment, crushed rock cover and shading board are used to adjust the subgrade damages caused by the thaw basin. Crushed rock-based embankment and both sides thermal pipes are used to adapted to subgrade damages caused by thaw-sandwich layer. The berms are adapted to subgrade damages caused by the frozen bulge.

针对融化盘偏移所引发的病害，提出可采用XPS板路基降低路基高度，或在阳坡一侧采用热棒路基、碎石护坡路基、遮阳板路基等工程措施进行治理；针对融化夹层所引发的病害，提出可采用片块石路基、双侧热棒路基进行治理；针对冻结核发育所引发的病害，提出可采用防水保温护道进行治理。

But, didn't°yet be over, saw a cake of rock Fu top a snake body, then it quick station at rock up, put out strength of jump.

可是，还没完，只见一块石头覆上了蛇身，然后之敏站在了石头上，使劲的跳着。

Geologic components and processes necessary to generate and store hydrocarbons, including a mature source rock, migration pathway, reservoir rock, trap and seal.

生成油气和储存油气必需的地质组成及地质过程。包括成熟的烃源岩、运移通道、储集岩、圈闭和封闭。

On the basis of generation and expulsion hydrocarbon history of source rock, seal formation history of cap rock, formation history of trap, active history of fault, oil or gas accumulation period using illites ages, main oil or gas accumulation period was determined to be from the end of Yimin formation to the early of Qingyuangang formation.

根据源岩生排烃史、盖层封闭性形成史、圈闭形成史、断裂活动史和伊利石测年技术，综合研究得到乌尔逊凹陷油气成藏的主要时期为伊敏组沉积末期—青元岗组沉积早期。

In the first exploration stage,several plays were divided vertically in order to show the characteristics of petroleum accumulation more clearly.With the assurance of source rock,the main play and prospect targets were chosen quickly by the assessment of reservoir,cap rock,migration passageway,seal ability of the faults,structure characteristics,favorite traps and the allied conditions.Good exploration result has been obtained in Melut Basin.

在确定油源的前提下，通过对储层、盖层、运移通道，断层封闭性、构造、有利圈闭及配套条件等方面的快速分析，迅速确定了主力成藏组合和主力成藏带，优选了勘探目标，在苏丹Melut盆地取得良好的勘探效果。

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。