• 船员这根钢管顶部根一根地装上更多管道,直到这根“足够碰到海底

    The crew attaches new lengths of pipe one by one from the top until the “drill string” is long enough to hit the seafloor.

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  • 船员这根钢管顶部根一根地装上更多管道,直到这根“足够碰到海底

    The crew attaches new lengths of pipe one by one from the top until the "drill string" is long enough to hit the seafloor.

    youdao

  • 因为钟摆最初时钟放在墙上的搁板上,再板上钟摆穿过去

    At first this meant that clocks were set on shelves high on the wall with a hole cut in the shelf for the pendulum to hang through.

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  • 取机通常数十而且只能获取一个与之等的冰芯

    A drill assembly is typically a few tens of metres long and can only hold a core of ice of the same length.

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  • 印度印度羚羊看起来别致大瓶塞。印度羚羊可以在黑夜优雅跳跃它们通常中等个儿的羚羊。

    The blackbuck of India has ringed horns that look like giant, fancy corkscrews. Blackbucks can leap very gracefully through the night. Usually they are medium-sized antelopes.

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  • 针对中国电影博物馆工程使用螺旋管内泵压CF G复合地基施工技术作了一些有益尝试、研究总结

    The construction technique of CFG piled composite foundation by long auger boring methodology is studied and summarized according to the project of China Film Museum.

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  • PD C用于中硬质地层具有速高、寿命等特点,适合砾石地层软硬交错地层

    PDC bits have been used to drill the homogeneous formation from soft to medium-hard, but they are not suitable for drilling in gravel and multi-interbedded formation.

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  • 通过分析螺旋机在切削各类土质时,角速度与土块运动机理关系提出确定临界的方法,工程施工中杆的实际转速大于临界转速,提高机的工作效率

    An analysis related to various kinds of soil cutting by earth auger, this paper puts forward that running speed of frill should be faster than critical speed so as to increase the efficiency of drill.

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  • PD C具有时间、机械、起次数少等特点,使用PD C头可大大提高速度

    PDC bit have advantages of high penetrate rate, long bit life which saving tripping times so that the application of PDC bit can improve drilling efficiency.

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  • 文中介绍了这种新型麻花特点主要设计参数的确定以及使用有关注意事项。

    The article tells characteristics and main parameters of said drills, and the correct way to use them.

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  • 砂岩透镜67遇到层砂岩透镜体。

    This sandstone lens was also encountered in Ying 67 hole, which was newly drilled on the longitudinal axis of the sandstone lens.

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  • 天地面板64厘米17公斤手工雕刻锻造,并镶嵌着1500颗璀璨夺目。

    This grows face plate of lock of heaven and earth 64 centimeters, weigh 17 kilograms, forging by manual sculpture, pure copper completely and become, enchasing 1500 to break auger, bright is dazzling.

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  • 动双层岩芯管结构简单、操作方便、同轴度好、适用寿命有效地提高、矿的完整度。

    The swivel-tube barrel can effectively increase core recovery rato. suitable for drilling in formations in which oblique hole comes easy. It is effective to assure hole quality.

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  • 螺旋管内泵压CFG施工技术太原部分地区扰动敏感性应用出现严重缩径质量问题

    Serious necking quality problems often appear when the CFG piles construction technology of long spiral drill pipe by pump pressure apply in some disturbed sensitive soil areas of Taiyuan.

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  • 螺旋管内泵压CFG一项CF G桩复合地基技术

    Pressure pumped CFG pile by continuous auger drilling is a new technology of CFG pile composite foundation.

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  • 从而减小轴向,使定心寿命,提高了削速度工作效率。

    So the axial force is reduced, the fixing centre of the concave bit is stable and the concave bit has a long lifetime.

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  • 前因后果 2月21日买家卖家店里买了一双高靴子,在取左脚鞋子的垫发现前脚掌有一枚厘米钉子,钉上。

    Context Feb. 21, buyers in a three drill seller store bought a pair of boots, high in the paper from his shoes when found a forepaws about 3 cm long, pointed towards the nail nails.

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  • 击中24举行库克9一个25英尺蜂鸣器交付最后第二胜利

    He hit for 24 points, held Cooke to just nine, and drilled a 25-footer at the buzzer to deliver a last-second victory.

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  • 击中24举行库克9一个25英尺蜂鸣器交付最后第二胜利

    He hit for 24 points, held Cooke to just nine, and drilled a 25-footer at the buzzer to deliver a last-second victory.

    youdao

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