lenticular zone

• 豆状核区

lenticular zone的用法和样例：

例句

1. I'd like to see Europe as a nuclear-free zone.
   我希望欧洲成为无核区。
2. The ministers reiterate that they support the Central Asian countries' proposal to set up a nuclear-free zone in the region.
   部长们重申，支持中亚国家在本地区建立无核区的倡议。