Dynamic aortic valve, a novel design for left ventricular assistance is proposed.An impeller similar to the airscrew is placed in the position of aortic valve.是什么意思_Dynamic aortic valve, a novel design for left ventricular assistance is proposed.An impeller similar to the airscrew is placed in the position of aortic valve.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句