Water vapor is gaseous water. The density of water vapor is about 0.622 times that of dry air at the same temperature and pressure, that is, the density of water vapor is always less than that of dry air.
Water vapor is the name of the disease and refers to edema. Such as water-vapor diseases, including geomantic omen, skin water, yang water and Shi Shui. Refers to drinking water to resolve phlegm. Treatise on Febrile Diseases: "There is water vapor under the heart of typhoid fever, coughing but slightly panting, and being hot but not thirsty. If you drink soup by yourself, you will be thirsty, and this cold will disappear to relieve you. Xiaoqinglong decoction is a master.
Water vapor:
The content of water vapor in the atmosphere is very small, but it varies greatly, ranging from 0-4%. Most of the water vapor is concentrated in the lower layer, half of which is below 2 km, and three quarters of which is below 4 km. The water vapor below 10- 12 km accounts for about 99% of the total water vapor.
Humidity:
Refers to edema. Such as water-vapor diseases, including geomantic omen, skin water, yang water and Shi Shui. Refers to drinking water to resolve phlegm. Treatise on Febrile Diseases: "There is water vapor under the heart of typhoid fever, coughing but slightly panting, hot but not thirsty." If you drink soup by yourself, you will be thirsty, and this cold will disappear to relieve you. Xiaoqinglong decoction is a master.