A check valve is a mechanical valve that only permits water flow in one direction.
检查阀(单向阀)是一个手动阀门，这样水只能往一个方向走。
Results:All patients were found mechanical valve prosthesis by Echocardiography(UCG).
结果：超声彩色心动图（UCG）显示所有患者存在机械瓣膜开启障碍。
The hypercoagulable state poses an extra problem in women with a mechanical valve prosthesis.
高凝状态给机械瓣膜妇女带来了麻烦。
In the ZAHARA study, mechanical valve prosthesis predicted both maternal and neonatal complications.
ZAHARA研究中，机械瓣对产妇和新生儿并发症均有预测价值。
Objective: To discuss the diagnosis and treatment of delayed mechanical valve prosthesis dysfunction.
目的：对晚发性机械瓣膜功能障碍的诊断和治疗进行探讨。
Objective This article summarized the clinical experience of 115 patients with biological and mechanical valve replacement.
目的总结115例生物瓣和机械瓣置换术的临床经验。
Routine use of warfarin for anticoagulation in mechanical valve replacement children has proved safe and feasible in the long run.
对机械瓣替换的儿童常规应用华法林抗凝能取得良好的远期效果。
In this article, the working mechanism, structure and advantages of the mechanical valve automatic control device were introduced.
本文叙述了阀门自动控制装置的工作原理、结构特点以及装置的优点。
It adopts the mechanical valve to control the quantity fo steam with the ong life, the more comfortable handle, the long-wait button.
采用机械阀门控制蒸汽量，寿命长，手柄更舒适，长寿命按钮电源开关。
Objective To determine the surgical point and technique of artificial mechanical valve replacement in children with heart valve diseases.
目的：探讨儿童心脏瓣膜病的人工机械瓣膜置换手术要点及方法。
Objective To investigate the application of anticoagulation therapy after heart mechanical valve replacements and corresponding inspection.
目的探讨心脏机械瓣膜置换术后抗凝药物的应用及相应监测指标。
Objective To evaluate the possibility and safety bounds of low intense anti-coagulation therapy after replacement of prosthetic mechanical valve.
目的研究我国南方地区人工机械瓣膜置换术后行低强度抗凝的可行性及安全强度。
Objective: to monitor the curative effect of oral warfarin for the patients after heart mechanical valve displacement by the prothrombin time (PT).
目的评价采用凝血酶原时间(PT)监测心脏机械型瓣膜置换术后患者口服华法林治疗效果的意义。
Because of improper taking anticoagulant drugs, some patients will suffer hemorrhage, embolism, function failure of mechanical valve, or even heart failure and other complications.
部分病人还会因为抗凝药物使用不当而出现出血、栓塞、机械瓣功能失灵，甚至心力衰竭等并发症。
The article discusses some factors which influence the performance of the non-mechanical valve, such as system pressure, air flow-rate, air charging mode and characteristics of ash et al.
通过理论分析，探付了系统压力、风量、充气方式、隔板孔口面积，以及飞灰特性等因素对回料装置工作性能的影响，得出了一些有益的结论。
The author based on the above results designed a model of downstream direction bileaflet mechanical valve and used finite bulk method to calculate the velocity and shear stress profiles of this valve.
作者提出了一种顺向双叶机械瓣的设计模型，并用有限体积法对这种模型进行流场和剪应力分布的数值模拟。
Based on the analysis on all kinds of load while the pump valve is working, we establish the corresponding mechanical model.
对泵阀工作时的各种载荷进行了分析，建立了相应的力学模型。
Valve actuation utilizes a mechanical power device, an actuator, to operate a valve.
阀门执行机构是一种采用机械力的设备，一台执行机构操作一个阀门。
The valve saucer reed offers the continuous mechanical pressure, guarantee the spheroid and valve seat are closely fitted all the time when the hot stress changes.
阀座碟簧提供了连续的机械压力，保证热应力变化时球体与阀座始终密合。
Objective To investigate the use of warfarin sodium after mechanical heart valve replacement.
目的研究心脏机械瓣膜置换术后华法林钠的应用。
Finally, as an applied example, the paper introduces the general design of multi-locations automatic cleaning line for valve parts as well as its mechanical structure and functions.
作为应用实例，介绍了阀类零件多工位自动清洗线的总体设计和机械结构及功能。
V-valve dual-bearing structure, mechanical stability, high starting torque is small, to ensure the valve sensor with excellent sensitivity and speed.
型阀采用双轴承结构，机械稳定性高，启动扭矩小，保证了阀门具有极好的灵敏度和感应速度。
Objective To determine the feasibility of three dimensional echocardiography (3de) in assessment of mechanical prosthetic valve areas.
目的观察三维超声心动图(3de)测定机械瓣瓣口面积的可行性。
Objective: To discuss the modes of termination of pregnancy about women after mechanical heart valve replacement and anticoagulation therapy and the effects on both mothers and embryos.
目的：探讨心脏机械瓣膜置换术后妊娠妇女孕期终止妊娠的方式、孕期抗凝以及母婴并发症。
The main complications were valve mechanical malfunction, peri-prosthetic leak, hemolysis, thromboembolism and infective endocarditis.
发生并发症有机械瓣膜功能障碍、瓣周漏、溶血、栓塞、感染性心内膜炎发生。
Objective To evaluate anticoagulation with low intensity after mechanical cardiac valve replacement.
目的探讨机械心脏瓣膜替换术后低强度抗凝的可行性。
The main complications were thromboembolism, valve mechanical malfunction, peri prosthetic leak, hemolysis and SBE.
并发症有血栓栓塞、机械瓣膜功能障碍、瓣周漏、溶血、机械瓣膜感染性心内膜炎。
The main complications were thromboembolism, valve mechanical malfunction, peri prosthetic leak, hemolysis and SBE.
并发症有血栓栓塞、机械瓣膜功能障碍、瓣周漏、溶血、机械瓣膜感染性心内膜炎。
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