• 中的隔膜破裂以便使泥浆到达以后通过。

    A diaphragm in the plug body ruptures to allow the cement slurry to pass through after the plug reaches the landing collar.

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  • 具有一个实心,根据泵压增加它能可靠地显示接触

    The top plug has a solid body that provides positive indication of contact with the landing collar and bottom plug through an increase in pump pressure.

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  • 发明远离提手的水外周面上设置若干环形凹槽O橡胶密封圈环形凹槽内。

    The periphery of the plug body, which is far from the plug handle, is provided with a plurality of circular grooves, in which the O-shaped rubber seal ring is embedded.

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  • 年前哥伦比亚大学人类学家凯•法莱(SekaiFarai)提供笔资金,供她研究科技创业公司这

    Two years ago, anthropologist Sekai Farai was awarded a grant by Columbia University to study the technology startup community.

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  • 福布斯还提到了世界第八大经济领导才能国内的高支持率

    Forbes cited Rousseff for her leadership of the world's eighth-largest economy and approval ratings within her country.

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  • 采用机械密封,泵顶部底部分别装有注水放泄

    Pump shaft seals use mechanical seal, pump top and bottom, respectively, equipped with water injection plug and the drain plug.

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  • 本文利用尔曲面描述了曲面编制绘制曲面图形程序

    This paper describes the plow body surface and designs the program for the drawing by using Bezier surface.

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  • 发动机结构内置燃烧室的高速旋转内燃转子,能融压气、燃烧排气做功于一

    The engines main body structure is an internal-combustion rotor, which has no blade and no piston but has an internal revolved stream combustor.

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  • 目的探讨人工晶状植入术可行性及其预防后发性白内障发生意义

    Objective To study the feasibility of intraocular lens embedded in capsule crevasse and its significance of preventing after-cataract.

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  • 除非有人发现像古埃及罗塔碑双语石碑协助学者破解这种书写,否则文字永远是个谜。

    We will never know for sure until someone discovers some form of bilingual tablet (an Indus Rosetta stone) that will help scholars break the code of the writing system.

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  • 井眼设计人员可能会选择泥浆连接确保高密度的浆并不井眼下落

    The well designer may choose to set bridge plugs in conjunction with cement slurries to ensure that higher density cement does not fall in the wellbore.

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  • 基性巴奎沉积岩相间构成巨大构造岩片的杂岩

    The ultrabasic rocks form a complex of large tectonic slices with intercalated slices of Sebakwian sedimentary rocks.

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  • 然后伯恩公式,求得所有多面顶点着色公式

    Then it is substituted in burnside formula all vertex-coloring formulas of the regular polyhedron are determined.

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  • 流动时候,离地方经常会产生现象。

    When Bingham fluid is in motion, plugged flow often occurs at places far from the boundary -walls.

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  • 擎天柱我们来自伯坦星球的超机械生命可以简称博派。

    My name is Optimus Prime. We are autonomous robotic organisms from the planet Cybertron. But you can call us Autobots for short.

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  • 研究了离子通道回旋电子束(ICECM)中的等离子非线性效应

    The plasma wave nonlinear effect of IonChannel Electron Cyclotron Maser (ICECM) is investigated.

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  • 因牙缺损邻接不良食物严重恢复接触点者

    Tooth defect with bad proximal relation and food impaction need recover proximal contact.

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  • 不同题材散文遭到奥古斯都内卡的一致嘲笑。

    His prose works on various subjects were ridiculed by Augustus, Seneca, and Quintilian for their undisciplined style.

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  • JS - 140型清洗灭菌干燥联合机组药用天然胶清洗、灭菌、干燥结为

    Model JS 140 rubber stopper treating machine is a combined unit composed of washing, sterilizing, and drying operations for rubber stopper used in pharmaceutical pro ducts.

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  • 实用新型公开了一种筷子,它1上端内设有2),在深孔装有镶有4)的3)。

    The utility model discloses a pair of chopsticks. Deep holes (2) are arranged in the upper ends of chopstick bodies (1), and plugs (3) lined with thin rods (4) are arranged on the deep holes.

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  • 介质切伦可夫中加入背景等离子有效地提高器件效率微波输出功率

    The use of a background plasma in a dielectric Cherenkov maser can effectively increase the efficiency and the microwave power output of the device.

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  • 、上灌装盖于一具有定位精确传动平稳保护瓶盖计量准确等优点,符合GMP标准要求

    It integrates with inner cork, outer lid, filling and screwing, with merits of accurate position, stable conveying, protection lid and accurate measuring. It meets GMP standard.

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  • 然后伯恩公式,求得所有正多面 顶点着色公式

    Then it is substituted in Burnside formula, all vertex-coloring formulas of the regular polyhedron are determined.

    youdao

  • 重点分析等离子密度厚度,外加磁场对等离子切伦可夫脉-波互作用影响,并计算各参量变化时的波增长率以及色散关系

    Analyzed the different plasma density, position, thickness, and field intensity influence to the beam-wave interactions in plasma Cerenkov maser. Finally, the curves and dispersion relationships a...

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  • 重点分析等离子密度厚度,外加磁场对等离子切伦可夫脉-波互作用影响,并计算各参量变化时的波增长率以及色散关系

    Analyzed the different plasma density, position, thickness, and field intensity influence to the beam-wave interactions in plasma Cerenkov maser. Finally, the curves and dispersion relationships a...

    youdao

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