cấu tạo bơm màng khí nén for Dummies
The diaphragm consists of a few main muscular elements: the sternal, costal, and lumbar sections. Each individual component has unique origins but all converge with the central tendon, Performing together to facilitate the diaphragm’s movement in the course of respiration.four van bi trong một chiếc bơm màng giống như những chiếc ch�