So the function of these endothelial cells is to regulate vascular tone and to regulate solute exchange and extravasation or transport of molecules across that endothelial layer.

因此，这些内皮细能是调节管张力以及调节溶质交换和渗，或者说是子穿过该内皮层运输。

The fourth is consolidating. Qi can prevent blood from extravasation and regulate the secretion and excretion sweat, urine, saliva, gastric juice, intestinal juice and sperm in order to avoid unnecessary loss.

固摄作用。气可以防止渗， 调节汗、尿、唾、胃、肠和精子泌和排泄， 以避免不必要损失。