The main failure form of V-round-thread casing, that is, the mechanism of thread connection slipping off, is analyzed in this paper.

Then come back to the neck and tie it to the other end of the gold thread that tied off the neck.

然后绕回到脖子上，与另一端系紧。

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The extraction of a root of a quantity. We think this thread has broken off.

开方，求一个数的方根我们认为这根线断开了。

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The distribution of the stress in casing connection, the value of make-up torque and thread off load are studied when the casing connection is assembled or loaded with internal pressure and axial tension, which are very important for gluing, leakage and thread off failure analysis.

套管接头在装配、内压和拉伸载荷工况条件作用下，沿接头的应力分布规律、上扣扭矩和滑脱力的大小，对分析套管接头粘扣、泄漏和滑脱的失效有重要参考价值。

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Aimed at the problems that sucker rods of the ground drive screw pump break and collars thread off frequently, the frequency conversion timing equipment of screw pump wells and the automatic control system are developed.

针对地面驱动螺杆泵抽油杆断、脱频繁，单井提液调参难以控制等问题，开发了螺杆泵井的变频调速装置及自动控制系统。

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The level of screw pump well being managed is more improved and that sucker rod break and collar thread off is delayed effectively, the exempt workover period is prolonged.

该技术的应用进一步提高了螺杆泵井的管理水平，有效的减缓了抽油杆的频繁断、脱问题，延长了检泵周期。

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The first position of thread off is coupling end, and that position is tallied with the position during actual operation.

滑脱的开始位置在接箍的端部.模拟结果与实际情况相吻合。

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and hasn't bothered to pick this thread off his jacket,

也懒得伸手替他拿掉外套上的线头

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Apparatus for centralization and thread off prevention of rod string in screw pump holes

螺杆泵杆柱扶正防脱扣装置及其应用

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Research and application of the forging thread off prevention hollow sucker rod used in the screw pump

镦锻式螺杆泵防脱空心抽油杆的研制与应用

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Finite Element Method Simulation of Thread Off Failure on Casing Thread Connection

套管接头螺纹滑脱失效有限元模拟

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Fasten the thread off with a knot.

打个结把线固定好。

词典精选例句

The failure of reinforced plastic fiberglass sucker rod is classified into bud and thread off, and the break of the rod body is the common failure pattern.

玻璃钢抽油杆的失效类型分为断杆和脱扣两种，杆体的劈断和劈散是其最常见的失效形式。

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Registered machine fits and positive sealing O ring seals at all joints; easy replacement.

在所有连接点均配置拥有专利保护的机械式适合的、积极的O型密封垫圈, 更换简便易行.

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Q 15 . Can a product be protected in Australia by both a Registered Design and a patent?

在澳大利亚,一件产品可以同时被注册外观设计和专利保护 吗 ?

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A patent protects your intellectual property.

专利保护你的知识产权.

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Administrative protection of drug will be replaced by protection of patent.

我们的新药保护将从行政保护走向专利保护.

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For utility models and designs, the duration of protection is even shorter, only five years.

至于实用新型专利和外观设计专利, 保护期限更短, 只有5年.

商贸英语会话

To provide reference for improvement in new patent drug pricing and administration in China.

目的为完善我国新上市专利药品价格管理提供参考,特研究新上市专利药品定价方法.

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Domestic companies lags on issuing lead-free patent were pointed out and some proposals were offered.

最后指出了我国企业在无铅焊料专利申请上的滞后并提出相关对策.

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We file patent applications on a variety of ideas that our employees come up with.

我们的专利申请是根据我们雇员提出的众多想法提出的.

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