type specimen

例句：

1. 1. This is a type specimen of the species we are studying.
   这是我们正在研究的物种的一个类型标本。
2. 2. The museum has a collection of type specimens from around the world.
   这个博物馆有来自世界各地的类型标本收藏。
3. 3. The scientist carefully examined the type specimen to determine its genetic makeup.
   科学家仔细检查了类型标本，以确定其遗传构成。