叶状结构 meaning in English

foliation

On the indexes of harmonic foliations
调和叶状结构的指数
These sounds are generally emitted through the mouth , but horseshoe and leaf - nosed bats emit their echolocation calls through their nostrils , there they have basal fleshy horseshoe or leaf - like structures that are well adapted to function as megaphones
这些声音一般通过口发出，但具有马蹄铁形和叶形鼻于的蝙蝠则通过鼻孔发出它们的回声定位叫声，在那里它们具有非常适合放大器功能的基本的肉质马蹄铁或叶状结构。