... 人造瓣膜 artificial valve ; artificial cardiac valve 瓣膜位置 position of valve 瓣膜口 valve orifice ; valvularorifice ...
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position of valve controlling system 阀门位置控制系统
position control of valve 阀门位置控制
control of valve position 阀位控制
feedback alarm of valve position 阀位反馈报警
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