左区能显示整个左室、左房的大小，二尖瓣的形态与对合情况，二尖瓣脱垂者可见叶瓣游离缘处某一区域向左房脱出。
In left area the contour and size of the left ventricle and left atrium and the shape and coaptation of the mitral valve could be visualized.
只有透过更广大多元的生活与知识的自主性场域，我们才能更积极主动地开展不同历史一地缘或文化一地缘的交流与对话活动。
Only by enlarging the autonomous field of multi-faceted living and knowledge, can we more vigorously develop communication in the area of historical or cultural localization.
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