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
- PIV experimental study on the axial velocity's distributing law of power law fluid's helical flow in eccentric annulus
幂律流体偏心环空螺旋流轴向速度分布规律的PIV实验研究 - The analysis chamber consists of a metal block which houses an annulus.
分析室由金属块组成，内装一个环。 - Objective: To investigate the feasibility of fascia lata on repairing intervertebral disc annulus.
目的：探讨阔筋膜修复腰椎间盘纤维环的可行性。 - 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。 - 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。 - 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 - 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。 - 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。 - 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 - Modeling and Processing Simulation of Straight Profile Annulus Worm Gear
直廓环面蜗轮的三维建模与加工仿真