annular

ADJ ring-shaped; of or forming a ring 環狀的; 環的或形成環的 ^[1] 

annular nozzle[航] 環形噴嘴 ; 環狀噴嘴 ; 環形噴口 ; 同心式噴頭

annular bit[木] 環形鑽頭 ; 環狀鑽頭 ; 環孔錐 ; [木] 環形鑽

annular drainage 環狀水系 ; 環形排水系統

annular burner 環狀燃燒器 ; 環形燃燒器 ; 環形燃燒室

annular pressure 環空壓力

annular clearance 環空間隙 ; 環形間隙

annular phasing 圓周相位角

annular borer 環孔鏜牀 ; [機] 套環鑽

annular wire 環形線 ^[1] 

It is usually made of an annular form, and the sliding surface is parallel to the plane.

通常把它做成環狀的形式，而且滑動表面是平面平行的。

The annular Pacific Ocean indicates that the Pacific Ocean has different origin and tectonic history with other narrow oceans whose origins were continental spreading.

環狀的太平洋暗示着它與地球上別的狹窄的擴張分裂型大洋有不同的成因和演化歷史。

It was reported that there would be an annular eclipse tomorrow.

據報道説，明天有日環食。 ^[2]