Humidity definition: The less water there is in a certain volume of air at a certain temperature, the more dry the air; the more water vapor, the more humid the air. The degree of dryness and humidity of the air is called "humidity". In this sense, the physical weights such as absolute humidity, relative humidity, comparative humidity, mixing ratio, saturation difference, and dew point are commonly used; if the weight of liquid moisture in wet steam is a percentage of the total weight of steam, it is called steam. humidity.
The instrument used to measure and record humidity is called a humidity recorder.
The effects of humidity on agriculture and forestry are as follows:
Low humidity in the misty forest can cause soil and plants to lose water and reduce production in agriculture.
Humidity is also a very critical quantity in the forestry and forestry industries. In sawmills, people tend to water the wood that accumulates there. The wood itself has its own humidity, and its humidity gradually approaches the ambient humidity of the air. This change in humidity within the wood causes a change in the volume of the wood, which is critical for the forest industry.
Generally, the wood should be stored in direct contact with all directions of the wood to avoid deformation or mold. When laying the floor, it is best to let the wood of the floor be placed in the house for one or two days to make it the same as the humidity inside the house. Otherwise, the wood of the floor may stretch or shrink after laying.
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