The main use of the three-branch bitter leopard, as recorded in "Tiangong Kaiwu", covers many aspects. First, the use of medicine. Its cold nature, hard taste, has the effect of clearing away heat and detoxifying, removing wind and dehumidifying. In ancient times, doctors often used it to treat colds and fever, sore throat, jaundice, rheumatism and bone pain. In case of typhoid fever and hot topic, the three-branch bitter prescription can help clear away heat and relieve the surface, so that the heat evil can dissipate. In the land of Lingnan, the climate is humid and hot, and the people are often troubled by rheumatism. The power of the three-branch bitter to remove wind and dehumidify can relieve the pain of joints and limbs for the people. Second, drive away insects and avoid filth. Its unique smell can make insects far away. Planting three branches of bitterness around the residence, or picking its branches and leaves to place indoors, can repel mosquitoes and make the room less disturbed by insects. And when the miasma gas is prone to occur, burning its branches and leaves can block the filth, keep the indoor air fresh, and reduce the possibility of disease transmission. Third, ornamental and ecological use. The three branches of bitterness are more beautiful, with lush branches and leaves. In the garden, they can be used as ornamental trees to add natural interest. In the ecosystem, they also provide habitat and food sources for many organisms, maintaining ecological balance. Fourth, although the use of wood is not its main use, it also has certain value. The wood texture is still straight and the structure is slightly thicker, which can be used to make some small utensils, such as simple wooden boxes, wooden spoons, etc., to provide convenience for people's daily lives.

This foreign body is strong and tough. Although a sharp blade is added to the body, it cannot hurt it in the slightest. It is just like the solidity of gold and stone. However, its shape is light and can be lifted in the wind, unlike the heaviness of ordinary hard objects. Looking at its color, it is often a faint blue light, like the abyss of dark night, deep and mysterious. Under the light, it is full of colorful brilliance, like neon in the sky, which is very magnificent. And its temperature is moderate, and it is lukewarm to the touch, which is just right for the human body. As for its conductivity, it is also quite unique. In normal times, insulation is like wood and stone, and electric current cannot be connected; in a specific situation, or in a strange force, it is instantly guided like copper and iron, and electricity flies like a fly, which amazes the viewer. Its state of being heated also has a wonderful thing. With intense fire, it does not melt, as if it is opposed to fire, but there is dense gas around its body, like a fairy mist, which is inexplicable. Waiting for the fire to breathe, it returns to normal, without damage. What's more, it behaves strangely in a magnetic field. It either follows magnetism, or moves against magnetism, without any rules, as if it has its own wisdom and chooses to go. The three-xenon-cesium cat thing is so peculiar in physics, it is a rare treasure in the world, and its various characteristics are comparable to ordinary things, which makes people feel the wonders of creation.

Tribromomethane, also known as bromoform, has the following chemical properties: Tribromomethane is a colorless heavy liquid with a chloroform-like odor. It is stable at room temperature and pressure, but can decompose to produce toxic bromide fumes in case of open flames and hot topics. From the perspective of nucleophilic substitution, the bromine atom in tribromomethane has a certain activity and can be attacked by nucleophiles to undergo a substitution reaction. In case of hydroxyl negative ions, the bromine atom is replaced by hydroxyl groups to form corresponding hydroxyl-containing compounds and bromine ions. This reaction needs to be carried out under suitable conditions, such as suitable solvents and temperatures. When it comes to redox properties, the carbon in tribromomethane is + 2 valent. Under the action of a specific strong oxidant, it can be oxidized, increasing the valence of carbon, and generating oxidation products such as carbon dioxide. Bromine exists in the form of corresponding bromide. However, its oxidation is relatively difficult and requires a strong oxidizing environment and conditions. In terms of hydrolytic properties, tribromomethane can hydrolyze under basic conditions. Because bromine atoms are affected by the electronic effect of neighboring carbon atoms, there is a certain tendency to leave. Under the action of alkali, hydroxide ions attack carbon atoms, bromine ions leave, and products such as formate and bromine ions are formed through a series of reactions. In addition, tribromomethane can react with metal-organic reagents. The metal atoms in the metal-organic reagents are partially electrophilic and can interact with the partially negatively charged bromine atoms in tribromomethane to initiate a series of subsequent reactions such as the formation of carbon-carbon bonds, which has important application value in the field of organic synthesis.

When the three-branch bitter brother is in production, many things need to be paid attention to. First of all, it is crucial to choose a quiet and comfortable place. This bird likes to be quiet, and the sounds of external disturbances, such as noisy human language and the hustle and bustle of carriages and horses, can cause it to worry, which in turn affects production. Therefore, when looking for a remote place, plant flowers and trees around it to create a quiet atmosphere, so that the bird can wait for production with peace of mind. Second, the supply of drinking water must be fine. Before production, it is advisable to prepare a rich and nutritious food for it. Grains that can be prepared, such as rice, millet, etc., also need to be supplemented with insects, such as earthworms, grasshoppers, etc., to supplement the protein required for their production. The water needs to be clean and sweet, and changed regularly every day to prevent the breeding of filth and the disease of the bird. Furthermore, pay attention to the physical condition of the bird. Before giving birth, the bird's behavior may be abnormal, or restless, or frequent entry and exit of the nest. At this time, when carefully observing, if you see that the bird has a disease, such as messy feathers and listlessness, please ask a doctor who is good at bird diseases as soon as possible, and do not delay it. When giving birth, do not rashly disturb. The production of the myna needs to be completed by your own efforts. If people intervene rashly, the bird may be too frightened and cause the production to go wrong. Just wait by the side. If you see that the production is difficult, you can help it as appropriate, but you also need to act with caution. After production, the cleaning and maintenance of the nest should not be neglected. The filth accumulates in the nest, which is prone to bacteria and endangers the health of the chicks and mother birds. When cleaned up in a timely manner, and the mother bird is supplemented with nutrients, so that it can raise the chicks smoothly. Such careful care will help the three-wench bitter brother to produce smoothly and the chicks to grow healthily.

"Tiangong Kaiwu" says: "Everything in the world is related to each other, and it affects the whole body." In today's discussion of the impact of swimming crab three warts on the environment, it is necessary to carefully examine its ecological habits and environment. Portunus three warts, often live in offshore shoals and sediment sediments. It is omnivorous, eating algae, shellfish, scavengers, etc., and occupies a specific position in the food chain. The feeding of this crab has the effect of regulating the number of algae. If the algae multiply and the crab eats it, it can prevent its excessive growth and lead to water eutrophication. It also has an impact on shellfish. Moderate predation controls the population size of shellfish, preventing it from over-multiplying and competing for resources. Furthermore, the metabolites of Portunus trituberculatus also participate in the environmental material cycle. Its excrement contains nutrients such as nitrogen and phosphorus, which circulate between the water body and the sediment. When appropriate, it can support phytoplankton and microorganisms, and help the material cycle and energy conversion of the ecosystem. However, if the scale of the crab population is out of control, a large number of metabolites may cause eutrophication of the water body, causing disasters such as red tides. The survival and activities of the crab also change the sediment. Crawling and digging in the sediment can make the sediment loose and enhance the material exchange between the sediment and the water body. This process may affect the habitat of benthic organisms, which is beneficial to the survival of some organisms, but may disturb other organisms. In the ecological environment, Portunus trituberculatus is not only a regulator of the ecosystem, maintaining the balance of the food chain and material circulation; however, if its quantity and distribution are unbalanced, it may also lead to negative changes in the environment. Therefore, the impact of this crab on the environment should be comprehensively considered for ecological harmony.