roundel
n.
1. 圆形物; 圆盘; 圆形纹章;【建】小圆窗, 串珠花边; 圆形棱堡
2. [诗]=rondeau
3. 圆舞
4. (信号)表示镜, 圆玻璃
名词roundel
1. (heraldry) a charge in the shape of a circle
同义词：annulet
2. English form of rondeau having three triplets with a refrain after the first and third
3. round piece of armor plate that protects the armpit
同义词
red roundel
红色表示镜
deflecting roundel
偏光镜
signal roundel
信号光环
spreadlight roundel
偏光镜
colored roundel
?猩?硎揪?