“晕圈”的英语？

“晕圈”的拼音为：yùn quān...

它的皮,光滑而有银色的晕圈,微微泛出淡青色.Their glossy barks are a faint light green with hazy silver spots.围绕着微管的外周,常有一层仅能着色很浅的晕圈.Microtubules often have a halo around the outside which is only slightly stained.由于被乳状晕圈围绕,凹陷中心显现出亮红色.The cen...