- a ring-shaped object, structure, or region.；a plane figure consisting of the area between a pair of concentric circles.
noun: annulus, plural noun: annuli
- a ring-shaped object, structure, or region.
Oxford American Dictionary
...心臟超音波的報告 Echo超音波 Conclusion 結論是 Mitral annulus anlus and aortic valve calcification 僧帽環與主動脈瓣鈣化 Inferior...
... on pool boiling heat transfer in a vertical annulus, the location of the holes 調查旁邊流入孔的地點的... a general characteristic of pool boiling in the annulus with closed bottoms. As the ...
...the aortic valve leaflets appear thickened or sclerotic. the aortic annulus is calcified. hypokinesia of apex. the ejection fraction of left ventricular...