查询词典 rock-boring

Indenters of different shape have different effects of rock-breakuge,To the four kinds kfindenters used in the experiment the rock-breakage ef fect a farc-prism indenter is the best.

不同形状齿形的破岩效果不同，试验所用的四种齿形中弧齿的破岩效果最好。

Experimental rock specimens were collected from the eastern Sichuan and northern Xinjiang provinces,and the stress isopleths to the rock specimens were calculated with a finite element method for accurate determination.

实验岩石样品采自四川东部和新疆北部地区，为测试准确起见，对岩样进行了应力等值线的有限元法计算。

Water jet ; rock breakage ; rock damage model ; fluid-wall interaction ; finite element method

水射流；岩石破碎；岩石损伤模型；流固耦合；有限元方法

High pressure water jet ; rock fragment ; finite element method ; fluid rock interactions ; numerical calculation

高压水射流；岩石破碎；有限元法；流固耦合；数值计算

In this paper, an idea is presented about a larger pressure of percolation flow existed in a part of rock by a high-pressure jet, and the pressure has great effect on the rock fragmentation with jet. A model of calculating the pressure is established.

本文提出了射流作用下岩石局部范围具有较高渗流压力的思想，并认为该渗流压力大小对射流破岩有重要影响，建立了该渗流压力的计算模型。

The numerical results of water jet breaking rock agree with the experimental conclusion. A valid approach to the process of water jet breaking rock sh...

数值计算的结果较真实地反映了水射流破岩过程中岩石的动态响应以及水射流动力学特性的演化过程，并与相关试验规律吻合良好，这表明该分析方法是有效的，可用来指导高压水射流破岩理论的进一步研究及应用。

The high-pressure jet is applied widely to the fragmentation of the rock in drilling engineering, but the mechanism of rock fragmentation with jet is not very clear by now.

高压射流辅助破岩在油气井钻井工程中得到广泛应用，其破岩机理还很不明了。

The rock damage model and the damage-coupling model suited to analyze the whole process of water jet breaking rock were established with continuum damage mechanics and micro damage mechanics.

运用连续损伤力学和细观损伤力学理论，建立了适用于水射流破岩全过程分析的岩石损伤模型以及宏细观损伤的耦合模式。

The influences of nozzle structural parameters、standoff distance and jet pressure on rock erosion effect were researched by rock breaking experiment.

该文实验研究了叶轮中心孔直径、混合段长度、扩展腔扩展角、喷距和压力5 个主要参数对直旋混合射流破岩效果的影响规律。

Just as Liam Gallagher remarked that BRMC deserved their early Oasis support slots because they 'dared to look like a rock'n'roll band' so Jet see rock music with a clarity only available to those who grew up five thousand miles away in Australia.

正如Liam Gallagher评论BRMC乐队是值得他们Oasis支持的，因为他们是真正看起来象支摇滚乐队。所以Jet对于摇滚乐有着清醒的认识。在澳大利亚，他们只接受那些5000英里远来的人的采访。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。