在革掉套管接箍和圆扣套管的前提下,建议采用无接箍、特殊扣型套管,以提高深井的套管强度。
On the premise of abrogating the casing collars and the casings with round thread. the casings with special thread and without collar are recommended to be used. in order…
无接箍式套管靠管体两端的螺纹连接,所以套管外径尺寸小,可增大环形间隙,便于套管下入和提高固井质量。
It connects with threads on both ends of pipe body, which allows a smaller casing O. D. and increases annular gap to facility casing running in and improve cementing quality.
这就是为什么通常导航没法用适当的关键字一个接一个简单列出的原因(即使用“无对话的”导航)。
That's why navigation options aren't often listed simply one after another using appropriate keywords (i.e. using "silent" navigation).
在一个闷热的夏日午后,我们坐在他那单调乏味的办公室倾谈。他戴着金耳环,身穿牛仔裤,脚踏一双Keds黑色高帮无系带胶底球鞋,还一根接一根地抽着骆驼牌(Camels)无过滤嘴香烟。
As we sit and talk in his drab office on a sweltering summer afternoon, he's chain-smoking unfiltered Camels and wearing jeans, a gold stud earring, and black high-top Keds sneakers with no LACES.
该图片是采取无振动按下一个按钮,按遥控器上的控制。而不干扰你可以继续期待透过接目镜到图象。
The picture is taken vibration-free by pressing a button on the remote control. Without disturbing you can continue looking through the eyepiece to the image.
介绍了低温粘接技术在SQUID 无磁杜瓦及其它领域中的应用。
The applications of cryogenic adhesive bonding technology in SQUID non - magnetic Dewar and other fields are introduced.
对比有胶与无胶纤维布拉伸实验,表明环氧树脂不仅粘接纤维布,对纤维布有保护作用,而且能够显著提高其拉伸强度。
The experiment compare of carbon cloths tension strength with and without glue indicates that the epoxy resin can not only make the fiber adhesive united but also increase the tensile strength.
文章还介绍了蜜胺衍生物作为无刺激性气味的甲醛给予体对粘接性能的影响。
Effect of melamine derivative as pungent odorless formaldehyde donor on bonding properties of adhesive was also described.
无载分接范围选择应能提供正确的低压侧母线电压。
No load tap ranges should be selected to provide an adequate low-side bus voltage.
收、卷采用无轴气动锥顶装置,单独电机驱动,双工位收放料,不停机高速自动接料功能,提高了工作效率。
Reeling is equipped with shaft - less pneumatic cone top device, individual motor drive, double work - place, non - stop high speed automatic picking function, which upgrades the working efficiency.
无焊连接。第1部分:无焊绕接。一般要求试验方法和使用指南。
Solderless connections - part 1: wrapped connections - general requirements, test methods and practical guidance.
本文研究了含铅的硼酸盐封接玻璃和无铅磷酸盐封接玻璃。
In this paper both lead borate sealing glasses and lead free phosphate sealing glasses are studied.
目的:探讨下肢严重创伤需行游离组织移植而患侧下肢无血管可供吻接时的修复方法。
Objective:To explore the reconstruction of severe low limb trauma when there are no usable recipient host blood vessels.
并分析了产生这种差异的原因,主要是经典强度准则表达式中采用的无拉剪耦合假设和层与层之间理想粘接假设,只适用于单层板或正交各向异性板。
The main reason came from the assumptions of non-tension-shear coupling whose is correct only for lamina and orthotropic laminates, and realistic bond between layers.
具有加工硬化、电弧烛接和耐冲击的特性,可磨削但不可机械无加工磁性的钢结硬质合金。
It has properties of hardening after malleablization, arc welding and impact resistance. It can grind but can not machining demagnitized steel-bonded carbide.
接铬组工人吸烟与否,尿中维生素丙排出量井无差异,而且均低于对照组。
Moreover, no difference in excretion was shown between the esposed smokers and nonsmoker, yet both of them was also lowered than that of control.
注:H4为推力接盘高度,转矩型无推力接盘。
Note: H4 is the height of thrust attachment, torque mode without this attachment.
军士们手持巨盾和长矛,可构成坚实防线,无论对抗骑兵或步兵都傲然无惧,必要时亦可列圆阵接敌。
Their large shields, and spears make them a solid defensive unit, able to resist attacks from both foot and horse, so long as they are well supported. If necessary they can form a defensive circle.
当患者情况好转达撤机标准后,拔除气管插管给予口鼻面罩接无创呼吸机机械通气。
When the standard of extubate achieved, he will be extubated and given non-invasion ventilation by oral-nasal mask.
目的探讨下肢大面积软组织缺损采用游离组织移植修复而受区无供血血管可供缝接时的解决办法。
Objective To provide a clinical method in the treatment of large soft tissue defect in lower extremities by free flap transfer in the cases without usable blood vessels in the receiving ares.
介绍了变压器用管形无励磁分接开关定触头的排列方式及管形开关的优化设计。
The arrangement off-load method of fix contact in pipe-type tap-changer is introduced. The optimum design of pipe-type off-load tap-changer of transformer is presented.
介绍了变压器用管形无励磁分接开关定触头的排列方式及管形开关的优化设计。
The arrangement off-load method of fix contact in pipe-type tap-changer is introduced. The optimum design of pipe-type off-load tap-changer of transformer is presented.
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