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closed end
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  封闭端
     During the flame expansion, the basic law of the flame thickness varied was that the flame thickness was thin and the flame sustaining time was short at the closed end of the fire sources and the flame thickness was thick and the flame sustaining time was longer at a long distance of the fire sources.
     在火焰传播过程中 ,火焰厚度变化的基本规律是 :靠近点火源的封闭端 ,火焰厚度较薄 ,火焰持续时间较短 ; 距点火源较远处 ,火焰厚度较厚 ,持续时间较长。
短句来源
     After establishing a steady flow in the rock core, the pump was stopped, the pressure decrease at the closed end of the rock core was recorded.
     岩心中形成稳定渗流后,关闭驱替泵,测量岩心封闭端的压力衰减曲线。
短句来源
     Impulse was calculated by integrating the pressure at the closed end of the tube.
     采用对爆震管封闭端燃气压力积分的方法计算发动机冲量。
短句来源
     Every position from the closed end to the open end along the axis should avoid the non-linear section of the relation curve between pressure drop and flux,in order to decrease the flowing loss.
     烛状陶瓷过滤元件沿轴向从封闭端到开口端的各个部位,都应尽量避免压降与流量关系曲线的非线性区,以减小流动损失.
短句来源
     Flames propagated from the closed end of the duct to the open end in case A,and from the open end to the closed end in case B.With the increase of ignition delay time,two different kinds of flame were observed in both cases: turbulent and laminar flames.
     在情形A中,火焰从管道的封闭端向开口端传播,在情形B中,从开口端向封闭端传播.
短句来源
  “closed end”译为未确定词的双语例句
     Multi-layer 2.5 dimensional carbon fiber reinforced silicon carbide (2.5D C/SiC) ceramic matrix composites with through-thickness reinforcements were fabricated by the isothermal low-pressure chemical vapor infiltration (ILCVI) process; thereby it is possible to manufacture the thermostructural components with one closed end.
     采用等温减压化学气相浸渗(isothermal low-pressure chemical vapor infiltration,ILCVI)工艺制备了在厚度方向上具有纤维增强的2.5维(2.5 dimensional,2.5D)碳纤维增强碳化硅多层陶瓷基复合材料,从而使一端封口的防热结构部件的制备成为可能。
短句来源
     DISCUSSION ABOUT THE AIR COLUMN LENGTH IN CLOSED END OF THE INVERTED U-TUBE
     对U型管倒置过程中封闭气柱长度的论述
短句来源
     The anastomoticstoma was at least 1 cm below and parallel to the suture line or the closed end ofresidual stomach.
     吻合口作在胃残端闭合缘的下方1cm 处;
短句来源
     Combination stamping process for squirrelcage unclosed and closed end face covering and design of reverse-drawing die
     鼠笼端面透盖和闷盖组合冲压工艺及反拉深模设计
短句来源
     In terms of the various theories of closed end fund discount, we analyses our country's closed end funds.
     本文通过对西方封闭式基金折价理论的研究 ,分析了我国封闭式基金折价的原因。
短句来源
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  相似匹配句对
     On the Discount of Closed-end Fund
     封闭式基金折价探析
短句来源
     On the Discounts of Closed-end Funds in China
     论我国封闭式基金折价问题
短句来源
     End of Summer
     夏末
短句来源
     Suggestions on the end.
     对实施有机肥产业化提出几点建议。
短句来源
     B-closed Spaces
     B闭空间
短句来源
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  closed end
These parts were actually processed using graphite or titanium inserts to produce a hollow, cylindrical part with a closed end.
      
The YSZ tube is immersed, with its closed end in the metallic melt, and an oxygen-chemical-potential gradient across the tube is established by passing a reducing gas through the tube.
      
The purpose of the study was to learn more about the stresses in the closed end of the cylinder so that future components of this type may be designed more efficiently with regard to stress and weight.
      
Adsorption isotherms of H2 and D2 deposited on single wall, closed end carbon nanotube bundles have been measured.
      
Polyethylene tubing was filled with serum or blood and closed end to end into loops whereby the volume of the remaining air bubble was inversely varied with respect to that of the fluid.
      
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Of the 325 patients with esophageal and cardiac carcinoma operated between March 1980 and May 1984,4(1.2%)had anastomotic leakage and 1 died of the leakage.The total mortality was 1.8%.Our experiences were:1.We cut the left gastric artery aslow as its origin to preserve the arterial arcade at the lesser curvature.2.End-to-sideanastomosis was used between the esophagus and stomach of intestine.The anastomoticstoma was at least 1 cm below and parallel to the suture line or the closed end ofresidual stomach.3.The...

Of the 325 patients with esophageal and cardiac carcinoma operated between March 1980 and May 1984,4(1.2%)had anastomotic leakage and 1 died of the leakage.The total mortality was 1.8%.Our experiences were:1.We cut the left gastric artery aslow as its origin to preserve the arterial arcade at the lesser curvature.2.End-to-sideanastomosis was used between the esophagus and stomach of intestine.The anastomoticstoma was at least 1 cm below and parallel to the suture line or the closed end ofresidual stomach.3.The thoracic surgical field was washed with 0.3% kanamycinsolution at the end of operation.4.A duodenal tube was inserted during operation forearly postoperative feeding of the patients.

本文报道食管和贲门癌切除手术325例,癌肿大多为晚期,吻合口瘘占1.2%,手术死亡率1.8%,作者的经验是:不同部位及不同程度的食管和贲门癌采用不同的切口及不同的手术方法;胃左动脉在其根部结扎切断;吻合口采用端侧缝合;吻合口作在胃残端闭合缘的下方1cm 处;吻合口的横径与胃残端闭合缘相平行;对营养差的病人术中置放十二指肠滴管,术后滴入营养液;积极处理术后胸内残腔;手术结束时用0.3%卡那霉素溶液冲洗胸腔。

From the middle sixties, the flow round the body in a density stratified fluid has been intensively studied by experiments. In 1967, Mowbray and Rarity published three schlieren photographs. In these photographs, the vortx structure is invisible. In that period many investigators studied internal waves produced by a horizontally moving body. In 1977, Pao and Kao first reported the closed-end double helical structure of the vortex tube in the wake of a sphere in homogeneous fluid, The phenomenon was revealed...

From the middle sixties, the flow round the body in a density stratified fluid has been intensively studied by experiments. In 1967, Mowbray and Rarity published three schlieren photographs. In these photographs, the vortx structure is invisible. In that period many investigators studied internal waves produced by a horizontally moving body. In 1977, Pao and Kao first reported the closed-end double helical structure of the vortex tube in the wake of a sphere in homogeneous fluid, The phenomenon was revealed by means of a weak stratification for small Richardson number (Ri = 0.215) and Reynolds numbers Re = 4×103 - 2×104. By optical technique Merzkirch and his student obtained clear photographs of wave pattern of internal wave field. Recently, new progresses in studies on the streamsurface bifurcation and vortex skeletons in the three-dimensional separation flow have be made. In order to clarify the vortex structure, the relation between internal waves and vortex in the wake and the mechanism of internal waves, we have built a stratification tank equipment in 1983. In the experiments we detected that for relatively low Reynolds numbers Re = 102 in the flow round a circular cylinder in a stratified fluid the vortices in the wake have a double-helical structure, and two branches of the double helix unwind continuously in an opposite sense from the formation region. This phenomenon is similar to the vortex structure in the wake of the horizontal motion of a sphere, published by Pao and Kao. In case of existence of an inclination, the vortex tube deforms in the motion.We believe that the experimental results may be helpful in studying the phenomena in sheared flow and in understanding the mechanism of production, development and attenuation of turbulence correctly.The cylindrical model used in the experiments was made of stainless steel, 20mm in diameter and 70mm in length, which was hung horizontally to the frame of the stratification tank. The cylinder was set in motion upwards and downwards under the inclination of 45° and 90°.For =0.718 (N is the Vaisala frequency), and Ri =N2D2/V2=2.062.As indicated by Daily and Harleman, there exist molecule diffusion and mass transport in the nonhomogeneous fluids. We shall neglect the end effects. According to our observations and analysis. A density stratified fluid in the wake region may be considered as a mixture of different constituents with different densities. In this way, in the wake region of the stratified fluid, besides the mass transport caused by the local velocity of the mixture- fluid, there exists additional mass transport caused by the relative velocity of different constituents. Due to the buoyancy effect, the fluid particles tend to return to their original equilibrium positions. It may be clearly seen in the experiment that the fluid particles in the wake region are set into oscillations. The oscillations accelerate the dissipation. As the cylinder moves forwards with constant velocity, in the region close to the cylinder, new helical vortices are continuously generated, and the unwound closed end of the vortex tube becomes looser and looser and is continuously dissipated to have a sawtooth boundary, which sets the fluid particles nearby in oscillations affecting the crests and troughs. The propagation of internal waves must satisfy certain dispersion relation which determines the spatial change of the phase. The wave pattern can be experimentally visualized by means of optical technique and theoretically calculated by use of the method of asymptotic expansion. The comparison of the theoretical and experimentalresults was published. The mathematical solution of internal waves in the stretified flow will be published separately.

密度分层流体中物体统流的实验研究从六十年代中期起蓬勃开展起来。在1967年Mowbray和Rarity发表了三张纹影照片,但是没有涉及到尾涡结构。在这期间,不少学者研究了水平运动产生的内波,到了1977年Pao和Kao首先报导了用弱分层的方法揭示了在小Richardson数R_i=0.215和雷诺数Re=4×10~3~2×10~4情况下在均匀流中圆球的尾涡具有封闭末端双螺旋结构。Merzkirch和他的学生用光学技术得到清晰的内波波型照片,对圆柱垂直运动实验和理论结果作了比较。近些年来,稳定性研究和三维分离流动中流面分叉及涡构架研究有新进展。为了搞清楚密度分层流体中的尾涡结构、内波和尾涡的关系、内波产生的机理,在1983年我们建立了分层流水箱设备。从实验中我们发现:在低雷诺数Re≈10~2情况下,分层流体中圆柱绕流的尾涡具有双螺旋结构,双螺旋的二支以相反的方向连续地缠绕在一起。这与Pao和Kao水平运动圆球尾流中涡结构有类似的现象。在有倾角情况下,涡管在运动中发生变形。可以认为,实验结果有助于剪切流动现象的研究以及对湍流的发生、发展和衰变机制的进一步理解。 本实验使用直径D=20mm,长度70mm的不锈钢圆柱...

密度分层流体中物体统流的实验研究从六十年代中期起蓬勃开展起来。在1967年Mowbray和Rarity发表了三张纹影照片,但是没有涉及到尾涡结构。在这期间,不少学者研究了水平运动产生的内波,到了1977年Pao和Kao首先报导了用弱分层的方法揭示了在小Richardson数R_i=0.215和雷诺数Re=4×10~3~2×10~4情况下在均匀流中圆球的尾涡具有封闭末端双螺旋结构。Merzkirch和他的学生用光学技术得到清晰的内波波型照片,对圆柱垂直运动实验和理论结果作了比较。近些年来,稳定性研究和三维分离流动中流面分叉及涡构架研究有新进展。为了搞清楚密度分层流体中的尾涡结构、内波和尾涡的关系、内波产生的机理,在1983年我们建立了分层流水箱设备。从实验中我们发现:在低雷诺数Re≈10~2情况下,分层流体中圆柱绕流的尾涡具有双螺旋结构,双螺旋的二支以相反的方向连续地缠绕在一起。这与Pao和Kao水平运动圆球尾流中涡结构有类似的现象。在有倾角情况下,涡管在运动中发生变形。可以认为,实验结果有助于剪切流动现象的研究以及对湍流的发生、发展和衰变机制的进一步理解。 本实验使用直径D=20mm,长度70mm的不锈钢圆柱模型,该模型水平地悬挂在分层流水箱框架中的带有滚珠轴承滑块上。圆柱与水平轴成45°和90°倾角向上和向下被拖着?

The burst test is one of the regular tests for fuel cans. Three different closed-end structures of zirconium alloy tube used in burst tests have been performed. In the first one, its closed-ends were sealed by electron beam welding; in the second, one closed-end was sealed by electron beam welding and the other by clamp holder; in the third, both closed-ends were sealed by clamp holders. Although the closed-end sealed by clamp holders has many advantages such as...

The burst test is one of the regular tests for fuel cans. Three different closed-end structures of zirconium alloy tube used in burst tests have been performed. In the first one, its closed-ends were sealed by electron beam welding; in the second, one closed-end was sealed by electron beam welding and the other by clamp holder; in the third, both closed-ends were sealed by clamp holders. Although the closed-end sealed by clamp holders has many advantages such as economical and high efficiency, the test results show that it is remarkably different from closed-end sealed by electron beam welding.

介绍了锆合金管材常温闭端爆破试验的装置及试样的三种高压封闭方法,经对试样的爆破试验,证明该装置及试样夹具能够满足测试要求。全夹具机械封闭方式具有经济、效率高等优点,但实验结果与焊接封闭方式的结果有明显差异。

 
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