流

1 The approach of LVB cannulated by passed retrograde across the aortic valve can be performed easily and reduce LV pre-load and LV work, as well as cardium oxygen consumption significally; 2 This LVB can improve coronary artery perfusion and cardiac function while AOMP can be maintained after LAD occlusion; 3 There has a potential impariment effect on the right ventricular function with excessive amount BFR (over 85%) during LVB, particularly in the present of myocardial ischemia; 4 Roller pump is not suited for a prolonged bypass because of significant damage to the blood system.

由此我们得出以下实验结论：经外周动脉逆行左室置管转流方法操作简便、迅速。能明显减少左室前负荷，减少左室作功，降低心肌耗氧量；能维持严重心脏缺血后的平均动脉压，改善冠脉循环灌注和左室功能，具有临床应用的可行性。85%以上转流率对缺血心脏的心功能有潜在的损害效应。以75%左右转流率较为合适。转子泵不适宜用作长时间转流。

Results: Among 80 cases of ACST, 76 cases were successfully implemented LC, gallbladder puncture and decompression choledocholithotomy T-tube drainage were performed in 11 cases, choledocholithotomy T-tube drainage in 15 cases, common bile duct gall bladder fistula Toishi T-tube drainage in 14 cases, gallbladder removal choledocholithotomy T-tube drainage in 36 cases, operative time 15-120 min, bleeding 10-80 ml; 4 cases transitted laparotomy, 1 case of gallbladder and surrounding tissue adhesion serious, ampulla signs disappear, and the hepatoduodenal ligament ill-defined, 2 cases of gallbladder contraction deep within the liver, gallbladder triangle scar adhesions, and 1 case of duct stone impaction and severe adhesions; postoperative hospital stay was 8-11 d, all were well recovered; pathological diagnosis, acute cholecystitis in 41 cases （51.2％）, acute suppurative cholecystitis in 24 cases （30.0％）, acute gangrenous cholecystitis in 15 cases （18.8％）.

结果：重症急性胆囊炎80例，76例成功实施LC，其中，胆囊穿刺减压胆总管切开取石T管引流11例，胆总管切开取石T管引流15例，胆囊造瘘胆总管切开取石T管引流14例，胆囊切除胆总管切开取石T管引流36例，手术时间15～120 min，术中出血10～85 ml；4例中转开腹，其中，1例胆囊与周围组织粘连严重，壶腹部标志消失，与肝十二指肠韧带界限不清，2例胆囊萎缩深陷肝脏内，胆囊三角区瘢痕粘连，1例胆囊管结石嵌顿且严重粘连，术后住院时间8～11 d，术后恢复均良好，治愈出院；80例术后病理诊断，急性单纯性胆囊炎41例（51.2％），急性化脓性胆囊炎24例（30.0％），急性坏疽性胆囊炎15例（18.8％）。

Comparing with real engineering, analyze the experiment and simulation results, the conclusion is that the mixture model can simulate the flow field of gas-liquid two-phase well; the effect of plain plug flow aeration is better than circumvolve plug flow aeration's; for the same plug flow aeration , the effect of 20m/s aeration is better than 10m/s's and

结合实际工程的运行，对实验结果及模拟结果进行对比分析，结论为：采用混合模型能够很好的模拟曝气池内气液两相流的流场；平移推流式曝气比旋转推流式底层曝气的曝气效果好；在同种曝气方式，相同工况下，20m/s的曝气速度的曝气效果要比10m/s、30m/s的曝气速度的曝气效果好。

The density flow in horizontal-flow sedimentation basin is discussed, and the flow field is analyzed, the coagulative precipitation effect for different plans are compared, at the same time the measures of abatement of density flow are discussed.

对影响混凝沉淀效果最大的水流因素—平流沉淀池中异重流的形成原因进行了讨论，对其流场进行了分析，并对不同方案混凝沉淀效果进行了比较，同时，就减弱异重流的条件进行了讨论。

There had been very few research report about the identification of gas-liquidsolid three phase cocurrent flow regime.

鉴于对三相并流体系流型的研究报道甚少，作者将压力信号的检测分析应用于气—液—固三相并流的流型识别。

Methods In cases of SAP with severe pancreatic and peripancreatic infection, open surgical debridement and drainage was done, and, about one week later, the drainage tubes were removed and a choledoscope was then used repeatedly to debride and wash out the necrotic and infected foci that were hard to drain out.

对于SAP已形成严重胰周感染的患者，在开腹手术清创、引流约1周后，拔除腹腔引流管，顺引流管窦道，插入胆道镜；应用胆道镜对感染灶内难以引流至体外的坏死组织及脓液进行反复冲洗及清除。

It points out that it must use unsaturated soil theory to consider the stabilization of construction established on loess and dilative soil subgrade. It uses single-phase flow theory and neglects the effect of porous air to describe the flow in unsaturated soil. The saturation of water and pore water pressure are taken as state variables, the effective stress and water flow velocity are expressed using these variables.

对于非饱和渗流孔隙水压力-位移耦合分析问题，本文采用单相流理论，忽略孔隙气压力的变化及其对土体变形的影响，以孔隙水饱和度和孔隙水压力作为状态变量，给出了非饱和土的应力状态表达式、渗流特性，建立了非饱和流孔隙水压力-位移耦合分析的有限元程式。

It can be employed to transmit torque by the shear stress of MR fluids.In this paper,the design method of the disc-shaped magnetorheological fan clutch is investigated theoretically.The expressions of the torque and the output rotational speed within the fan clutch is derived to provide the theoretical foundation in the discal design of the clutch.A Bingham model is used to c...

将磁流变液用于发动机冷却系风扇离合器的设计中，在理论上分析了盘式磁流变液调速风扇离合器的工作机理，应用B ingham模型来描述磁流变液的本构方程，建立了离合器的输出转矩与转速的计算模型，导出了离合器基本几何参数的工程设计计算公式，为盘式磁流变风扇离合器的设计提供了理论依据。

It was shown that, the flow pattern in the EMPT was more complex than that in traditional one, that is, in the column chamber, the short circuit flow from the outlet nozzle of the ladle was depressed by the rotating molten steel, and horizontal recurrent flow appeared in rectangular chamber, which prolonged the average staying time of the molten steel, then reduced the volume fraction of inactive area in EMPT.

结果显示，电磁净化中间包的流场比传统中间包的流场复杂：在圆形腔中，旋转运动抑制了大包水口至矩形腔的短路流，而在矩形腔中形成水平环流，从而延长钢液在中间包的平均停留时间，死区减小，电磁净化中间包的上述流场结构及传输行为对钢液中的非金属夹杂物去除非常有利。

In this paper, by using the research results of rock permeation mechanics, the author set up the hydraulic model of rock fractures firstly. Then, the author analyzed the current research results of rheology of ordinary portland cement and micro-fine cement grouts, and established the rheological model and the relationship of rheological parameters to hydraulic time.

本文首先借鉴岩体渗流力学的研究成果，建立了适合于研究浆液运动的岩体裂隙模型；然后对现有的水泥浆流变性的研究成果进行了综合归纳和分析，确定了浆液的流变模型和流变参数与水化时间的关系式。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。