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- reverse flow cleaning 反流清除法
- Requirement: Valve must be tight against reverse flow. 要求:这种阀门对于回流必须密封紧密。
- Purpose: To test valve No. 1 for tightness against reverse flow. 目的:检测1号止回阀对于回流的密封性。
- Use a check valve to prevent reverse flow into the cylinder. 采用止回阀,防止回流入钢瓶。
- Purpose: To test check valve No. 2 for tightness against reverse flow. 目的:检测止回阀2号对于回流的密封性。
- Spring loaded for fast closure, eliminating reverse flow slam and water hammer. 负载弹簧用于快速关闭,消除逆流冲击和水锤。
- Abstract] Our hospital adopted the laminar flow cleaning operating room in the October 2004.The inner aisles and the 12 operating rooms were decontaminated by laminar system. 摘要]我院于2004年10月开始启用层流净化手术室，其内走廊及12个手术间全部采用层流系统进行空气净化。
- Precision machined tilting disc and seat for tight shutoff in reverse flow direction. 精密机加工的倾斜式阀瓣和阀座,适用于逆流的紧密关闭。
- Never reverse flow through a regulator or rely upon it to act as a check valve. It will not perform this function. 禁止通过调整器倒流或依靠它作为止回阀。它不允许执行这个功能。
- Grade of depurations under flow clean room terminal air filtration device is airtight machinery arbitrarily. 本产品是百级净化以下乱流洁净室内的终端空气过滤装置，采用机械密封方式。
- Series 774X Double Check Valve Assemblies are designed to prevent the reverse flow of polluted water from entering the potable water system. 系列747双止回阀总成用于防止污水回流进入饮用水系统中。
- Requirements: Valve must be tight against reverse flow under all pressure differentials. 要求:在所有压差下,阀门对于回流必须是密封的。
- For lesion at the distal region, this flap may be modified as a distal-based flap based on reverse flow. 其适应症为近位或中位指节部位之疤痕挛缩，较远位者则可改采逆流之远位皮瓣重建。
- Equipped with mechanical lift check feature to close valve the moment flow stops, preventing reverse flow. 配置机械提升式止回阀，当阀门出现流量停止时关闭阀门，防止倒流。
- Series774 Double Check Valve Assemblies are designed to prevent the reverse flow of polluted water from entering into the potable water system. 系列747双止回阀总成用于防止污水回流进入饮用水系统中。
- Series774 XDCDA Double Check Detector Assemblies are designed to prevent the reverse flow of polluted water from entering the potable water supply. 系列747XDCDA双止回阀检测器总成用于防止污水回流进入饮用水系统中。
- Youngmin Jo, Chi Tien, Madhumita B.Ray. Development of a post cyclone to improve the efficiency of reverse flow cyclones. POWDER TECHNOLOGY. 2000 Vol 113, PP99-108. 沈恒根张玮.;旋风分离器进口回转通道气尘分离模型
- Presents the determination of overspreading rate, sectional wind velocity and terminal filter efficiency in unidirectional flow clean room design and the calculation and selection of pre-fliter. 介绍了单向流洁净室设计中满布率、断面风速、末端过滤器效率的确定以及预过滤器的效率计算和选择。
- And the output rectifier diodes can commutate naturally, avoiding voltage oscillation and voltage spike caused by the reverse flow of primary current. 输出整流管能够自然换流，避免了反向恢复造成的电压振荡和电压尖峰。
- Furthermore, the main reason of the axial backmixing of the liquid is the liquid backflow which induced by the reverse flow of the bubbles. 计算结果表明，在逆流操作中液相轴向返混主要是由于气泡的逆向运动诱导产生的液相回流引起的。
