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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.

包括底盘、泡帽、积垢部件和分散桨，泡帽通过支撑件固定在积垢部件上方，积垢部件固定在底盘上，其结构是内筛组件、外筛组件、盖板和底盘构成的环隙结构，环隙内根据需要使用填料或保护剂，内筛组件构成的内筒是空筒结构，底盘与内筛组件内筒对应部分为开口结构，开口结构下方是通过连接件固定的分散桨。

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.

在理论上，用幂律流体模型描述了聚合物驱油井产出液的非Newton流变性；建立了双极坐标系下幂律流体在内管做轴向往复运动的偏心环空中非定常流的控制方程及边界条件和初始条件方程；建立了双极坐标系下幂律流体在内管做轴向往复运动的偏心环空中流动时瞬时流量和流体在内管壁上的压力分布计算公式。

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.

将低维Galerkin方法推广至可以求解任意平移运动圆柱的绕流问题，用较少的模数值研究了圆柱尾迹的主动控制问题，在亚临界Re数下圆柱以适当的频率沿流向和横向振动均成功地激发出Karman涡街；而在略高于临界Re数下圆柱以1.8倍自然脱涡频率沿横向振动明显地抑制了Karman涡街；再现了超临界Re数横向及流向振动圆柱绕流的频率锁定等复杂非线性现象。

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..

本公司是生产和销售混凝土输送泵、泵车配件专业厂家，主要产品有三一、中联、楚天等各种品牌和规格的砼缸、主油缸、摆动油缸、闸板阀等。

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.

根据平板硫化机液压缸圆筒部分的强度条件，推导出液压缸外径为极小值时，液压缸材料的许用应力与工作液压力之间的关系，从而为平板硫化机的优化设计提供了最佳工作液压力值。

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型胶印机压印滚筒为研究对象，通过有限元分析获得滚筒动静态挠曲特性，提出用主动补偿方法改善滚筒挠曲变形，并仿真分析了补偿特性。

On the basic of heat equation method, a general math modeling of heater is developed., as well as a lots of real-time math modeling of heating system, such as math modeling of heat economic analysis、relative internal efficiency of HP cylinder、relative internal efficiency of MP cylinder and LP cylinder、utilization of blow down water tank、steam make-up of deaerate and steam leakage of seal gland.

热力系统在线性能计算和热经济性分析在降低机组煤耗，提高火电厂运行效益方面具有重要的作用。

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.

如果间隙过大，当气缸气压变化时不能有效地将刹车片夹紧，导致张力过小，造成开机时浮动辊突然被拉下将纸带绷断；如果间隙过小，则气缸始终将刹车片夹紧，气缸气压变化不能调整刹车片与刹车盘的夹紧程度，最终会将纸带拉断。

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.

在外筒的车厢内侧端部，可用手指取出地设有端盖，该端盖防止异物经过上述外筒与上述驱动力传递构件之间的间隙而浸入到外筒内。

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.

这种结构的液压缸超高压只在工作液压缸内部产生，不波及油管，使整套系统密封简单，实现了小液压泵站驱动大作用力液压缸的目的。

I'll try to bring the conversation around to the subject of money.

我想把谈话引到钱的问题上。

Only from a superior source of goats can an exceptional chevon product be made.

羊源 有优良的羊源才能生产出好品质的羊肉。