The mitral valve area (MVA) after percutaneous balloon catheter mitralcommissurotomy (PBMC) was assessed in 36 patients with mitral stenosis.
观察36例经皮球囊导管二尖瓣分离术治疗的二尖瓣狭窄患者，发现其术后瓣口面积的大小。
Besides, the strength of the intake swirl can be less, that will increase valve area and reduce the loss of flowing. This combustion system also c...
同时，可以降低对进气涡流的要求，增加气门流通面积，减少流动损失。
Besides, the strength of the intake swirl can be less, that will increase valve area and reduce the loss of flowing. This combustion system also can reduce th...
同时，可以降低对进气涡流的要求，增加气门流通面积，减少流动损失。
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