Objective: To evaluate the myocardial protection of changing temperature blood cardioplegia for heavy valve replacement.
目的：探讨变温含血停跳液对重症心脏瓣膜置换的心肌保护作用。
Red Valve Pinch Valve sleeves are constructed similar to a heavy-duty truck tire.
美国红阀公司的夹管阀套管结构类似于重型卡车的轮胎。
Rapid closing of the valve is accomplished fitting a heavy spring.
安装一根粗弹簧就可以达到迅速关闭阀门的目的。
Part of blowdown valve has heavy leakage.
部分排污门泄漏严重。
Part of blowdown valve has heavy leakage.
部分排污门泄漏严重。
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