Mechanical valves were used in 22 cases, and bioprothetic valves in 2 cases.
进口机械瓣替换22例，进口生物瓣替换2例。
Mechanical valves last longer than tissue valves, but they increase the risk of other complications.
机械瓣使用时间长于组织瓣膜，但是它增加了其它并发症的风险。
Familiar with hydraulic systems, pneumatic components, solenoid valves, and mechanical drive system, understand PLC control theory.
熟悉液压系统，气动元件，电磁阀，及机械传动系统，了解PLC控制原理。
Generally used for the mechanical gears, machinery parts, housings, valves, electrical and electronic, automotive parts and aerospace, aviation and other industries.
一般用于机械方面为齿轮、机械配件、壳体、阀门，电器电子、汽车工业配件和宇航、航空等工业。
The main products are diving blenders, filters, automatic valves, mechanical grid, environmental protection Mixer, screw conveyor, and other products.
主要产品有潜水搅拌机、过滤器自动阀门、机械格栅、环保专用搅拌机、螺旋输送机等系列产品。
Artificial mechanical aortic and mitral valves were intermittently sutured.
间断缝合人工机械二尖瓣膜和主动脉瓣膜。
Mechanical assemble of a range of valves, gear box and actuators in accordance with Company procedures.
根据公司的操作流程安装阀门、齿轮箱和执行器。
They often use imported electrical signal proportional electro-magnet will be converted into mechanical power or valves displacement volume control.
它们常采用比例电磁铁将输入的电信号转换成力或阀的机械位移量，进行控制。
Automatic electric controls for household and similar use - Part 2-19: Particular requirements for electrically operated oil valves, including mechanical requirements; Amendment 1.
家用和类似用途的自动电气控制。第2- 19部分：电气操作油阀门的特殊要求，包括机械要求。修改件1。
For larger valves, heavy duty VS series scotch yoke type actuators provide nonlinear torque characteristic with the highest possible mechanical advantage for seating and unseating the valve.
对于大型阀门，重型VS系列挡车轭类型的涡轮执行机构能够提供非线性特性的扭矩，具有最好的机械性能，适用于阀座和无阀座阀门。
The problem of degeneration and calcification within fresh pericardial valves may due to the damage caused by mechanical stress more than others, which should be proved in further studies.
新鲜心包组织生物性更好并具有一定的生长潜能，其远期退变和钙化，可能与受机械应力损伤相关性更大，此项内容有待进一步研究。
To solve the ZK3 type turn point machine mechanical jam problem, ZK4 type point machine adopts magnetic lock turn instead of the ZK3 type valve pressure before valves.
为解决ZK 3型转辙机的机械卡阻问题，ZK4型转辙机采用电磁锁闭阀代替了ZK3型的气压锁闭阀。
ObjectiveTo investigate the morphologic and mechanical properties of bovine jugular venous con- duit with valves fixed with polyepoxy compound.
目的探讨环氧化合物交联牛颈静脉带瓣管道的外观形态，组织稳定性及流体物理性能的特征。
These rings are applicable in uses on compressors, mechanical pumps, valves, chemical instruments and meters. etc.
用于压缩机、机泵、阀门、化工仪器、仪表等。
This paper presents a new type of Electronic Servo valve (ESV) which includes the pulse width modulator, electro-mechanical actuator and variable section area valves.
本文介绍了一种新型的电子伺服活门。它由脉冲调制器和机电作动器以及变截面活门组成。
This paper presents a new type of Electronic Servo valve (ESV) which includes the pulse width modulator, electro-mechanical actuator and variable section area valves.
本文介绍了一种新型的电子伺服活门。它由脉冲调制器和机电作动器以及变截面活门组成。
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