In the trumpet period, the pyrethroid pesticides are sprayed with water 1000 times into the autumn corn leaf to prevent aphids and other hazards, but also can be used to mix furan into fine soil, or use 150 ml of bt emulsion per acre and dilute 1 kg of water. Mixing 15 kilograms of soil and soil is made into poisonous soil, which is thrown into the bell mouth of the heart and leaf plexus. However, pesticides must be stopped 15 days before harvesting.
Cosmetics are compound mixtures made of various raw materials through reasonable deployment and processing. Cosmetics have a wide variety of raw materials with different properties. According to the raw material properties and uses of cosmetics, it can be roughly divided into two categories: matrix raw materials and auxiliary raw materials.
The former is a kind of main raw material of cosmetics, which occupies a large proportion in cosmetic formulations and plays a major functional role in cosmetics. The latter is responsible for shaping, stabilizing or imparting color, fragrance and other properties to cosmetics, which are not used in cosmetic formulations, but are extremely important. Cosmetics are chemical mixtures made of natural, synthetic or extracted substances with different functions as raw materials and processed through production procedures such as heating, stirring and emulsification.
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