查询词典 ursine seal

This paper studies the application of mechanic seal to chlorinating container ,based on the theory of kinematics and dynamics,analyzes various factors which influence the seal effect and puts forward some metheds for improving the operational per formance.

水相悬浮压力法氯化聚乙烯生产工艺的主体设备──氯化反应釜须具备耐&三高一强&的使用特点──高温、高压、高搅拌转速和强腐蚀性。

Arctic Ocean, Bearded Seal Close-Up, 1997Looking every bit the baritone, a male bearded seal lolls in the sun.

一只雄性的髯海豹懒洋洋的躺在阳光下，他们每一个都是一副男中音的样子。

In this paper, set the balancing disk labyrinth seal in vibration test-bed for a large-type compressor rotor as research object, CFD method is adopted to analyze the internal flow field of 3-D labyrinth seal of rotating shaft under the condition of different relative eccentricity with constant speed and variable pressure difference and with constant pressure difference and variable speed.

以某大型压缩机转子振动试验台的平衡盘梳齿密封为研究对象，采用CFD方法，分析了转轴在不同相对偏心距下，定转速变压差和定压差变转速时的三维梳齿密封内部流场，总结了流场内部压力、速度和温度的变化规律。

January 09, 2008 Cape Fur Seal and Bull Kelp, South Africa, 2002 Photograph by David Doubilet The sun silhouettes the sinuous form of a Cape fur seal plunging through a forest of bull kelp fronds off the coast of Gansbaai, South Africa.

意译：主标题：海岬的软毛海豹和巨大的海藻，南非，2002年。位于南非的Gansbaai海岸之外一只软毛海豹跳入并通过一个巨大的海藻森林。

Shenyang Seal Production Research Center is a large-scaled new technique seal producer in Northeast China.

沈阳市印章研究制作中心，是东北地区规模较大的新技术制章企业，在全市范围内建立了印章管理网络。

After an enumeration of the existing problems specific to a labyrinth seal the necessity of employing contact and running in type seals was expounded along with an exploratory study of the lateral seal for a light type chain grate stoker.

以常用的鳞片式链条炉排为例，阐述了炉排侧密封的重要性，揭示了迷宫式密封存在的问题和采用接触式密封和饱合式密封的必要性。

Rehabilitation of seals is also available in a more unique properties: the injury did not wear face, we have developed a hydraulic reciprocating seal products: grid to circle, Lancaster letters, high-pressure rotating closures, dust-tetrafluoroethane Yixi laps, orientation Support Central, Central-oriented positioning, direction and fluoride with flexible rubber seal; combination of letters: TD, KD, GD, DAS, V-type, and so on.

我们开发的液压往复密封产品有：格来圈、斯特封、高压旋转封、聚四氟乙稀防尘圈、导向支撑环、导向定位环、导向带及氟橡胶密封弹性体；组合封：TD、KD、GD、DAS、V型等。

To enhance the reliability of bearing seal of cone bit, this paper plans to adopt face-radial combination sealing structures; that is to say, end-face and radial seal are arranged in one bit simultaneously. The nonlinear finite element method is applied to analyze and optimize the design of sealing structures.

为了提高牙轮钻头轴承密封的可靠性，本文设计采用端面-径向组合密封结构，即在一只钻头中同时布置端面和径向密封，采用非线性有限元方法对密封结构进行分析和优化。

From the high-pressure oil-nozzle high-pressure injection of seal oil, a high-pressure seal around the cock ring, that is, cone valve and cocks, a layer of oil film between the sealing surface, both can be closed lubrication, open and close easily.

从高压油咀注入的高压密封油，在旋塞周围形成高压密封环，即阀体和旋塞锥体密封面之间有一层油膜，既能封闭又能润滑，启闭容易。

The rubber seal issue under operating system has been studied by the theory of dynamic sealing. The deformation and stress distribution of rubber material were calculated under the well in-pressure and sealing out-pressure using then-linear finite element. Through the experimental study of the rubber strength and fatigue, the intensity limit and the fatigue life were obtained. According to the study results, a new type of sealing equipment was designed by adding the reinforcing steel bar into rubber core to reduce the maximum shear stress, so as to solve the problems of dynamic seal under hyperbaric pressure.

采用动态密封理论，针对带压作业系统中的橡胶密封胶芯问题，利用非线性有限元计算了在井压和密封外压作用下的变形和应力分布特征，并通过对密封胶芯材料进行了强度和疲劳实验研究，获得了胶芯材料破坏的原因，进而根据计算和实验研究结果，进一步提出了在胶芯内增加钢筋以减小最大剪切力的改进意见，同时进行了理论校核，并以此为基础设计了新型的密封胶芯，从而解决了带压作业装置高压动密封的难题。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。