Accordingly, under oil pressure, the main oil seal surface can work.
因此主封油面是处于油压下工作。
The criterions of seal design are presented that can keep the joint leak-tight as well as not damaging the seal surface.
给出了设计石油套管特殊螺纹接头时，既能保证其密封性，又不至于发生粘结损坏的条件。
Processing by rolling the seal surface and durability are greatly improved, and its excellent performance into full play.
被滚压的加工面其密封性及耐久性被大幅度地提高，其卓越的性能得到充分地发挥。
The utility model has a main point that the other side of the main oil seal surface is also provided with an oil seal lip.
本实用新型的要点是：在主封油面的另一侧还有一个封油唇口。
It has many advantages, such as high working speed, seal impression is clear and no diffusing, seal surface will not shrink or deform.
它具有制作快捷（客户可即定即做、立等、可取）印迹清晰不扩散，印面不收缩、 不变形的特点。
This fact does not contact the shaft seal surface, it is the sealing principle of polymer cooled to half molten state and forming the seal.
这种密封实际上并不接触轴的表面，它的密封原理是将聚合物冷却到半熔融状态而形成自密封。
It wholly changes the defects of hard-sealed metal ball valves such as easy to be leaked, big torsional moment and non-corrosive seal surface.
彻底改变了金属硬密封球阀艺泄露、扭矩、密封面不耐腐蚀的缺点。
A gas protection seal for powder was designed to solve the problem that powder into seal makes seal surface wore, which results in seal failure.
设计的一种气体保护填料迷宫组合密封结构可以解决粉体介质密封因粉体颗粒进入密封装置引起密封表面磨损导致密封失效问题。
The result of transient state analysis indicated the thermal-mechanical effect on seal face during loading, the seal surface parameter dropped steadily during unloading.
理想瞬态分析实例表明，加载过程中密封端面产生热机效应，稳定减载过程中端面参数平稳下降。
The paper introduce the leakage influences factor of reciprocating rod seals; the roughness of the seal surface and the rod speed are the important parameter of seal leakage.
介绍了液压往复杆式密封是否发生泄漏的影响因素，指出密封表面粗糙度和杆速是决定密封是否泄漏的重要因素。
Flange surface roughness of the influence, especially sealing effect when using the soft cushion, seal surface coarse degree value big are caused by the leak is one of the main reasons why.
法兰表面粗糙度对密封效果影响很大，特别是当采用非软质垫片时，密封表面粗糙的度值大是造成泄露的主要原因之一。
Photosensitive seal machine's basic principle is to use special materials, photosensitive seal surface don't need imprinting in the local form a layer of film, which can penetrate to seal the effect.
光敏印章机的基本原理是利用特殊材料的感光性，在印章表面不需要印迹的地方形成一层不能渗透的膜，从而达到印章的效果。
In the laboratory, when the seal dives below the surface of the water and stops breathing, its heart beats more slowly, requiring less oxygen, and its arteries become constricted.
在实验室里，当海豹潜入到水面以下并停止呼吸时，它的心脏跳动得更慢，需要的氧气更少，动脉也会收缩。
Recent field studies, however, reveal that on dives in the wild, the seal usually heads directly for its prey and returns to the surface in less than twenty minutes.
然而，最近的实地研究显示，在野外潜水时，海豹通常会直接冲向猎物，并在不到20分钟内返回水面。
The sleek head of a seal bobbed to the surface to get a better look at us.
一头海豹不时从水中冒出光滑的头来，想把我们看得更清楚。
ANSI flange sealing principle is extremely simple: the two bolts each other extrusion flange sealing surface and form a seal gasket.
ANSI法兰的密封原理极其简单：螺栓的两个密封面相互挤压法兰垫片并形成密封。
This summer, such systems helped seal a BP well a mile below the surface of the Gulf of Mexico.
今年夏天，这样的系统帮助封堵了墨西哥湾水下1.6公里处英国石油公司的油井。
Synchronous chip seal layer has many advantages, such as high strength, surface, non-slip, waterproof, durability, preventing driving rain and so on.
同步碎石封层具有强度高、表面粗糙、防滑、不透水、耐久性好、防止雨天行车水雾等优点。
Why do I have to seal my stone surface and grout?
为什么要对石材表面采取密封和灌浆处理？
Perfect seal the bottom and the surface, waterproof and dustproof.
完美密封的底部和表面，防水和防尘。
These processes, as well as providing acoustic isolation and a surface for finishes, also air-seal the interior.
这些处理在提供了隔声与用于涂刷表面的同时，也密封了内部。
A flexible, usually elastomeric sealing element and housing used to seal an irregular surface such as a wireline.
一种能变形的、通常是弹性的密封部件和外壳，用于密封不规则的表面，如电缆等。
First, the water pump mechanical seal ring on the surface of metal corrosion.
第一，水泵的机械密封上金属环表面均匀腐蚀。
The influencing factors on the surface activation layers during indium seal are also analyzed.
进一步分析了铟封过程中影响阴极表面激活层的因素。
Construction technology of slurry seal is economic, rapid, effective method of pavement surface treatment, especially suiting to preliminary maintenance of pavement.
稀浆封层施工技术是一种经济、快速、有效的路面表面处治方法，尤其适于路面的早期养护。
Prior to startup, get rid of tape from labyrinth seal end of input shaft, labyrinth seal outer surface of output drive flange and respirator.
启动前应除去减速机输入轴迷宫密封端面和输出传动法兰迷宫密封外圆表面，以及呼吸器上的防锈包装及胶带。
The research can solve some problems of surface treatment and seal coat, and provide reference for pavement construction.
本文的研究旨在研究和解决基面层表面处治或封层问题，对今后封层的应用施工提供参考。
The model of magnetofluid seal based on the surface tension of magnetofluid on the magnetic chains was deduced with some experiments related.
通过试验观察，提出了基于磁性链上磁液表面张力的磁流体密封模型。
The model of magnetofluid seal based on the surface tension of magnetofluid on the magnetic chains was deduced with some experiments related.
通过试验观察，提出了基于磁性链上磁液表面张力的磁流体密封模型。
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