英文单词：cannelure

中文含义：环状凹槽；套筒的圆形槽

英语词性：noun

美式音标：/’kæn(j)əl(j)ʊr/

同义词：groove, channel

易混淆单词：cantilever, canister

双语例句：

  1. The bullet has cannelures that help to retain the grease.
  2. The shell casing has four cannelures around the circumference.