air sac
air
e
sac
sæk
sāk

Định nghĩa và ý nghĩa của "air sac"trong tiếng Anh

Air sac
01

one of several air-filled chambers connected to a bird's lungs that maintain a continuous flow of air through the respiratory system 

chuyên ngành
thông tin ngữ pháp
Các ví dụ
The bird's air sacs helped it breathe efficiently during flight. 
02

a flexible, air-filled enlargement of an insect's respiratory tubes that assists ventilation and may reduce body density 

chuyên ngành
Các ví dụ
The insect's air sacs allowed it to control its buoyancy. 
03

a microscopic, air-filled chamber in the lungs where oxygen and carbon dioxide are exchanged with the blood 

chuyên ngành
Các ví dụ
Oxygen diffuses into the bloodstream through the walls of air sacs. 
LanGeek
Tải Ứng Dụng
langeek application

Download Mobile App

Cửa Hàng Ứng Dụng