Annular column
[化] 环形柱; 环隙塔
🧩 词语组成解析
annular
[['ænjulə]]
a. 环形的\\n[医] 环状的
column
['kɑləm]
n. 纵队，列;圆柱;专栏;
🗣️ 情景例句
He's something!
他真了不起！
Just a short line to say thanks.
只言片语聊表谢意。
it is now possible not only to locate a shoal but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.
不仅能够确定鱼群的位置，而且可以根据鱼群回声的特点分辨出是鲱鱼、鳕鱼，这是人们所熟悉的其他鱼。