annulus
英
美
n. 环形物，环带（节、体）；圆环域
COCA.36877
英英释义
noun
- (Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar
- a toroidal shape
- a ring of ships in the harbor
- a halo of smoke
双语例句
- The compact area of unripe condyle carries development to the head, form cartilage dish with fiber annulus former base.
生骨节的致密区向头端发展，形成软骨盘和纤维环的原基。 - Study on Annulus Pressure Distribution after Perforation of Composite Perforators
复合射孔器射孔后环空压力分布试验研究 - Numerical calculation of pressure drop of axial laminar flow in concentric annulus of power-law drilling fluid Churn flow and annular flow are common flow patterns encountered in gas-liquid systems through conduits.
幂律钻井液同心环空轴向层流压降的计算对垂直同心环形管内上升气液团状流向环状流的转换进行了研究。 - The application range of the annulus centrifugal flowmeter is also provided.
给出了该流量计的使用范围。 - Objective To probe the value of mitral annulus peak systolic flow velocity and systolic displacement in evaluating left ventricular systolic function of dilated cardiomyopathy patients.
目的探讨二尖瓣环收缩期峰值速度及收缩期位移评价扩张型心肌病患者左室收缩功能的价值。 - The two-dimentional motion differential which fits for non-Newtonian fluid in eccentric annulus with permeable well wall is studied in this paper.
本文研究了适合带渗透性井壁的偏心环空非牛顿流体二维运动微分方程式。 - The Application of Screw Pumps in Directional Wells and the Technology Research on Annulus Test
定向井中螺杆泵及螺杆泵环空测试技术研究 - Mitral annulus velocity detected by TDI is sensitive and reliable to evaluate left ventricular function in heart failure children.
以TDI方法测定二尖瓣环运动频谱评价心力衰竭儿童左室功能是敏感和可靠的。 - A novel gas-liquid self-sucking nozzle with inward-convex annulus structure was equipped to study the dissolution of oxygen.
建立实验装置，研究一种带凸形圆环结构的新型自吸式气液二相喷嘴的吸气溶氧性能。 - Because white castle towers aloft to go up in high hill, its all around annulus hill and laky.
由于白色城堡耸立在高高的山上，其四面环山和湖泊。