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- What is the function of the back flow valve? 逆止阀的功能是什么?
- This pressure inversion can cause back flow of the process materials into the cylinder, or "suck back". 这种压力倒置会引起过程物质回流入钢瓶，或“吸回”。
- The advantage to this is that the air in the plenum will not back flow into the supercharger as the pressure in the supercharger is always more then in the plenum. 优势对这空气在方面充气室将不返回流入增压器作为压力在里增压器更那么在充气室里总是。
- Capacitance vessels constrict, increasing the back flow of venous blood. 容量血管收缩;静脉回流量增加.
- The speed field is composed of back flow region and joint jetting region. 速度场主要由回流区和贴附射流区组成;
- This paper introduces the method of casing pressure drop which can be used to measure pump inlet pressure and flow pressure at well bottom. 阐述了套压降低法测泵口压力和井底流压的基本原理、测试方法以及相关的资料处理和计算方法。
- Equally effective in checking back flows from head pressure on the discharge or suction sides of pump. 无论是泵的排泄口的排出压力,还是泵的吸入口,其流体止回的效果都是相同的。
- The results showed: The cooling had significant influence on the near wall flow pressure, and the influence was different with cooling schemes. 结果表明：冷却气流对喷管壁面压力分布影响较大，不同冷却结构的壁面压力分布特点不同。
- Critical flow pressure reflects the impact of capillary pressure and boundary effect and gas percolation, and causes non-Darcy gas flaw. 临界流动压力反映了毛细管力与边界层作用对气体渗流的影响，并使气体表现出非达西渗流特征。
- You said you could see life, or Arthur Abel, skulls on firearms, ammunition and some in critical condition, life is a back flow. 你说你可以看见人生，亚瑟或是该隐，头盖骨上有的枪支弹药和生命垂危，一回头便是一生周转。
- Pressure mould former has its special characteristics developed by our company. It depands on the pulp flow pressure and quickly dewatering in forming zone. 压力圆网成型器是本公司开发的一种很有特点的园网成型器。它主要依靠浆流本身的压力，在成形区内快速脱水成形。
- Independent of flow pressure change and temperature change in a given range, MFC/MFM show the excellent repeatability, controllability and wide operating pressure range. MFC/MFM具有不因温度和压力的波动而失准，重复性好，自动测量控制，工作压力范围宽等特点。
- A concept of “gas flow pressure"is proposed and the existance of the pressure in ventilation network in gassy mines is demonstrated in theroy and in practice. 提出了“瓦斯风压”的概念，从理论、实践上论述了“瓦斯风压”在瓦斯矿井通风网络中的存在。
- In this paper,we present a new type of hybrid arc quenching system,which controls the metal vapor and back flow of the hot air in splitters arc quenching chamber. 本文研究了一种将窄缝与栅片配合应用于限流断路器的新型混合式灭弧系统。
- Rose bushes shoot again after being cut back. 玫瑰丛修剪後还能再长出新枝。
- The selection of pipe wall thickness,the calculation and design key points of the melt flow,melt pipe flow pressure fall and melt flow speed in the design of melt pipes were introduced in detail. 介绍了熔体管道设计中管道壁厚选择、熔体流量、熔体管道流动压力降和熔体流速等计算方法和设计要点。
- At last, the approximate calculation methods of pore water pressure and flowing pressure are presented. 给出土坡稳定性分析中对孔隙水压力和动水压力的近似计算方法。
- The B ultrasound examination and intravenous antegrade angiography of deep vein of inferior member before operation showed back flow existed in all 5 limbs in A group ,28 limbs in B and C group , flow back time >0.5s,PVI lies in all the 36 limbs . 术前B超及深静脉造影检查显示A组中的5条、B组和C组28条肢体全部存在股浅静脉返流;返流时间>0.;5s;36条肢体均存在PVI。
- The influences of circumfluence and back flow on the diffusion of contaminants were simulated and calculated in detail,and the visual result and averaged diffusion distance were obtained. 主要针对河道回流、绕流对污染物扩散的影响进行了详细数值模拟计算,并分别给出了可视化结果及平均的扩散距离。
- This device should be installed at the furthermost downstream end of the supply pipe or fixture where temporary spillage due to critical flow pressure conditions can be discharged harmlessly. 这种装置应该安装在供应管道或卫生洁具下游尽可能远，并且由于临界水压环境可能产生无害排放的暂时性喷溅的地方。
