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
- Sleeve used to establish between the tubing and annulus flow channel, or used to control the production of disposable isolation layer or layers.
滑套用于建立油管和环空之间的流动通道或用于控制生产层或隔离弃层。 - 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 - In this paper we simulated the mechanism of the formation and structure of the western Pacific subtropical high in a rotating annulus.
本文用模拟实验方法研究了西太平洋副热带高压的成因和结构。 - 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。 - To reduce the pollution of the oil-gas well towards the bottom after its fracturing and decrease the operation costs, the hanger specially used for annulus feeding fracturing was developed.
为了减轻油气井压裂后对地层的污染并降低作业成本，研制了高强度环空压裂专用悬挂器。 - Quantitative assessment of left ventricular diastolic function in hypertension by mitral annulus velocity
应用二尖瓣环运动速度评价高血压患者左室舒张功能的研究 - Characteristics of Flow Field in Annulus Space between Train and Tunnel
列车与隧道环隙空间流场特性的研究 - In all cases, filtering operations are carried out using a square window or annulus.
在所有的情况下，滤波运算都是使用方形窗或圆环来进行的。 - 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。 - 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