5-Bromopyridine-3-carboxaldehyde

"Tiangong Kaiwu" says: "For every cow, China has only water and yellow, and the buffalo is twice as strong as yellow." Yellow cattle and buffalo have their own strengths.
Yellow cattle are tame, and they are mainly used for pulling carts and plowing land. In dry land labor, yellow cattle have a steady pace and good endurance. For example, in the vast plains of the north, the land is relatively dry, and yellow cattle pull plows and plow, which can make the soil fertile and conducive to grain planting. And its character is docile and easy to drive, so in many agricultural activities, yellow cattle are farmers' right-hand men. When driving, yellow cattle can also move forward steadily, transporting goods and people and animals, and contribute a lot to transportation.
Buffalo, which is twice as strong as cattle, is mainly used for paddy field labor. Paddy fields are slippery, and buffalo hooves are large and solid, which can better adapt to this environment. In southern water towns, many paddy fields depend on buffalo deep plowing and raking. Buffalo is huge and powerful, and can easily pull heavy plows in paddy fields, making the paddy soil soft as mud, creating good conditions for rice growth. In addition, buffalo like water, and they often lie in ponds after work, which not only can cool down, but also help clean the body and reduce the breeding of diseases.
Overall, although cattle and buffalo are both important animals for farming, due to their differences in characteristics, they each played a key role in different regions and agricultural scenes, jointly contributing to the prosperity and development of ancient agriculture.

The five-year-old is the best, and the three-year-old is the best. Its ingredients are also used in food, and the taste can be determined. However, if the method of combining the five-year-old and the three-year-old is used, there is also a general study.
The two-year-old has different shapes and characteristics, and the method of combining the three-year-old is also important because of it. First, the material is the most important. The living one of the five-year-old is bright in color, complete in limbs, and full of vitality. At the same time, the five-year-old is the same, and the three-year-old is also new. The image of the rot, its fragrance is correct, and the ground is tender, so that it can be combined with the best material.
Second, the method of understanding. The nail should be washed with water to remove the stains on the surface. If there is any nail, it can be broken in order to taste. Five sprouts can be chopped and chopped to make the incense easy to disperse; three watilts can be sliced or segmented, depending on the product and the desired taste.
Third, the order of the combination. Start with a low heat first, and put less oil. When the oil is suitable, you can first place the nail and fry it slightly until the color is good, and the fragrance begins to emerge. That is, add five sprouts, stir fry for a while, so that the fragrance is mixed with the nail. And the next three watilts, add another amount of water, water, water, water and other flavors, slow down. In order to prevent scorching, nor should it be weak, so that the taste is not melted. Wait until the dishes are cooked and the taste is tasty before you can come out.
Fourth, the matching of the ingredients. In addition to the five-octane kidney sprouts and three isatis, you can also add prickly ash and star anise to increase its fragrance; or add less cooking wine to remove the fishy smell of the nail. However, the amount of ingredients is just right, more taste, less work.
In order to combine the five-octane kidney sprouts and three dishes, the quality of the ingredients, the method of reason, and the order of the combination to the matching of the ingredients, all need to be attentive, in order to make it good and enjoy its deliciousness.

Lead and mercury are the genus of hardware. Lead is heavy and heavy, its color is blue and black, and it is smooth at room temperature. In case of fire, it will melt into liquid, and the fire will go away and re-coagulate. Mercury is a liquid metal, white as silver, flowing and lively, and seems to have a smart state. It is light and volatile, and even at room temperature, it slowly disperses in the void.
Both lead and mercury are toxic. Lead enters the body, accumulates and is difficult to discharge. It can damage the organs, mess up qi and blood, cause dizziness, fatigue of limbs and bodies, and children are especially vulnerable to it. Mental development is blocked. Mercury's volatile gas, if inhaled into the lungs, hurts the lungs and brain, makes people tremble and forget, and endangers life for a long time.
However, lead and mercury also have their uses in alchemy and various skills. In ancient times, alchemists used lead and mercury as the main medicine, hoping to refine the elixir of longevity. Although there are many wrong methods, it can also be seen that lead and mercury are heavy in alchemy. In terms of craftsmanship, lead can be cast into tools, and because of its corrosion resistance and durability, it is often used for protection; mercury is used in the art of gilding, so that the utensils are radiant and radiant.
Looking at the physical properties of lead and mercury, lead is heavy and stable, and mercury is light and flexible. Although the two are toxic, they can be used well and can also be used. But when using it, be careful to prevent poisoning from invading the body and causing physical and mental harm.

Lead and mercury, the beauty of hardware, heaven and earth to the essence. Lead is heavy and rigid, mercury is flowing and soft.
Lead is black in color, its nature belongs to water, it melts when it encounters fire, and coagulates when it encounters water. It is also an object, capable of subduing all stones and making hardware. In alchemy, lead is often the foundation of cauldron tools, with its sturdiness and capacity, guarding the inside and hiding the essence. Lead contains the innate qi, has the virtue of Kun, and has heavy loads, laying the foundation for alchemy cultivation.
Mercury is white in color, its nature is metal, under room temperature, it flows and does not live, its shape is like a bead, lively and agile. Mercury has the innate god, belongs to the essence of Qianyang, can channel the gods, and is good at change. In alchemy, mercury is often the key ingredient of medicinal pills. Its unpredictable nature can stimulate the thickness of lead, and the two complement each other, and the symmetry of yin and yang can form a great pill.
The combination of lead and mercury is refined, and yin and yang are combined. This is the most important way of alchemy. The combination of lead and mercury is like the intersection of heaven and earth, the stiffness and softness of each other, and all things are born. Lead can make the flying of mercury, and mercury can lead the stagnation of lead. Only when the two are combined can they be condensed into pills.
The nature of lead and mercury has its own strengths. The thickness of lead can protect the peace of the body, hide Qi and nourish the mind; the agility of mercury can connect the meridians and collaterals, and smooth qi and blood. However, the nature of lead and mercury must also be well reconciled. If there is more lead and less mercury, the pill body will be dignified and difficult to transport; if there is more mercury and less lead, the pill nature will be frivolous and difficult to last for a long time. Only when lead and mercury are balanced and just and gentle can you get the wonderful medicine of long-term vision and achieve an extraordinary state of sainthood.

There is a question today, how is the situation in the market? I would like to take the example of "Heavenly Works and Objects" to say in ancient Chinese.
Those who have written "Heavenly Works and Objects" are also related to the matter of materials. It is not a matter of description, but it can also be deduced from the situation of the world. In ancient times, the things that changed in the city were often affected by the land, and were also affected by factors such as the land, supply and demand, and the ease of work.
The soap is black. The value of the soap is determined, or the land, the workmanship of the manufacture, and the quality of the dyes used. If this soap is made of high-quality materials, and the dyes used are high-quality, it will not be cheap.
And those who are blue, the color is also blue. The same is true for three feet of blue. If the local and industrial soaps are similar, then the speed is five feet to three feet, there is a ratio of five to three.
Generally speaking, the amount of soap is often proportional. If the soap is established, and the other pieces are assumed to have a large difference, it will be three feet of green, which is about three-fifths of the five feet of soap.
However, the situation of the world is not good, and the quality of the market is not often good. If the green area is close, the supply is sufficient, but the demand is slightly less, and the proportion is low; on the contrary, if the green area is close, the supply is low, and the demand is high, the proportion is high.
Therefore, if you want to improve the quality of the market, you must take into account the general factors, and it cannot be determined by the ratio of degrees. Only by looking at the situation, such as the situation of the land, supply and demand, and work, can you get the solution.