It comprises a chassis, a bell cap, a begrime element and disperse oar. Wherein, said bell cap is mounted above the begrime element via the support element; the begrime element is mounted on the chassis which comprises a inner screen component, a outer screen component, a cover board and a chassis to form the annular space structure; stuffing or protective agent can be filled into annular space according to the demand; the inner cylinder formed by inner screen component is in the hollow cylinder structure; the part of chassis relative to the inner cylinder of inner screen component is on the open structure under which the disperse oar is mounted via the connection element.

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Power-law fluid is used to describe the Non-newtonian rheological property of the produced fluid in a polymer-driving well; the governing equations, boundary and initial equations of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially is established in bipolar coordinates system; formulas of instantaneous flow rate and stress distribution on the outwall of the inner cylinder of the unsteady flow of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially are established.

在理論上，用冪律流體模型描述了聚合物驅(qū)油井產(chǎn)出液的非Newton流變性久久国产精品日本波多野结衣；建立了雙極坐標(biāo)系下冪律流體在內(nèi)管做軸向往復(fù)運(yùn)動(dòng)的偏心環(huán)空中非定常流的控制方程及邊界條件和初始條件方程欧美真人做真爱免费A片；建立了雙極坐標(biāo)系下冪律流體在內(nèi)管做軸向往復(fù)運(yùn)動(dòng)的偏心環(huán)空中流動(dòng)時(shí)瞬時(shí)流量和流體在內(nèi)管壁上的壓力分布計(jì)算公式。

The low-dimensional Galerkin method is generalized to solve the flow around arbi-trarily translating circular cylinder.Active control problems of wakes behind circularcylinders are numerically investigated by only small number of modes.The in-line andtransverse oscillation of a circular cylinder with proper frequency produce Karman vor-tex street successfully in some subcritical regime,vhereas the transverse oscillation of acircular cylinder with 1.8 times the natural shedding frequency can effectively suppressthe Karman vortex street at a slightly supercritical Re.

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The Company are the production and sale of concrete pump, pump fittings Professional manufacturer, has 31 major products, in conjunction, Chutian various brands and specifications of the concrete cylinder, master cylinder, swing cylinder, gate valves, etc..

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From the strength of the cylinder in the platen press ,the relations between the allowable stress of material to make the cylinder and the hydraulic pressure are derived when the outer diameter of the cylinder is the minimal value.

根據(jù)平板硫化機(jī)液壓缸圓筒部分的強(qiáng)度條件激情性爱在线观看，推導(dǎo)出液壓缸外徑為極小值時(shí)，液壓缸材料的許用應(yīng)力與工作液壓力之間的關(guān)系99久久久无码，從而為平板硫化機(jī)的優(yōu)化設(shè)計(jì)提供了最佳工作液壓力值日韩欧美久久。

This paper studies on the impression cylinder of J2108 offset press. With finite element method, deflection character of cylinder is achieved in static and dynamic load. Active-compensation to improve flexing-change of cylinder is bring forward, and its compensation character is simulated.

本文以J2108型膠印機(jī)壓印滾筒為研究對象，通過有限元分析獲得滾筒動(dòng)靜態(tài)撓曲特性狂野欧美男人的天堂网站，提出用主動(dòng)補(bǔ)償方法改善滾筒撓曲變形免费在线视频网站，并仿真分析了補(bǔ)償特性欧美视频在线。

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If the gap is too large, when the cylinder pressure cannot be effective to brake-workholders, causing tension too small, resulting in a post by floating roll drawn paper tape under; if the gap is too small, the cylinder is always workholders, brake cylinder pressure cannot adjust the brake pad and brake disk workholders degrees, and there will be draggle the paper tape.

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An end cover which can be taken out by fingers sets on the inner end of the carriage of the outer cylinder, the end cover prevents eyewinker from passing through the gap between the outer cylinder and the drive transfer component to immerge into the outer cylinder.

在外筒的車廂內(nèi)側(cè)端部人妻AV无码系列专区移动可看，可用手指取出地設(shè)有端蓋，該端蓋防止異物經(jīng)過上述外筒與上述驅(qū)動(dòng)力傳遞構(gòu)件之間的間隙而浸入到外筒內(nèi)超碰人人爆乳人人熟女超碰。

This kind of structure cylinder that ultrahigh pressure is produced in the work cylinder interior, does not affect the tubing, made the system seal to be simple, and it enables the small fluid pumping station to drive the hydraulic cylinder.

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