In the 1950s, China's first pair of rubber shoes was born, and this green rubber shoe was named " Liberation Shoes " at that time. Because the sole and collar are made of wear-resistant rubber, they are very comfortable and durable, especially practical. The military green shoe body contains its unique charm. At that time, when the supplies were not very abundant, a pair of liberation shoes was considered a necessity to protect the feet. Its method was very simple, convenient, and very durable, making it an indispensable choice under the living conditions at that time. Afterwards, Liberation shoes began to move towards the streets and alleys, gradually becoming an indispensable part of people's lives. At that time, many people had their own rubber shoes for the first time. Wearing them to work, work, and go to school was a proud and exciting event. The value of a pair of rubber shoes goes far beyond its own functions. The joy of having rub...
HP Indigo Electro Ink is a type of charged pigment based particle suspended in liquid, which controls the position of printed particles electronically to achieve digital printing. Unlike dry carbon powder, HP ElectroInk has very small particle sizes, only 1 to 2 microns. When provided to customers, it is in concentrated form and packaged in pollution-free can packaging into the printing machine. Inside the device, it is thoroughly mixed and diluted with image oil in the ink tank, forming a mixture of image oil and ink particles for printing. Three major advantages of HP Indigo Electro Ink Firstly, it makes short form printing and personalized printing cost-effective, enables the use of variable data such as text or images, and enables instant delivery. Therefore, digital printing machines have changed the printing mode of various segmented markets, including labels, packaging, teaching aids, images, journals, and magazines. The characteristics of digital printing have also driven th...
According to the botanical classification method, the tea tree belongs to Angiosperm, Dicotyledon, Primitive Tepal, Camellia, Camellia, and Camellia. It is an evergreen woody plant. The height of the tree-type tea tree can reach 15 to 30 meters, the base stem circumference is more than 1.5 meters, and the life span can reach hundreds of years or even thousands of years. At present, the most common type is cultivated tea trees. In order to produce more buds and leaves and facilitate harvesting, people often use pruning methods to inhibit the vertical growth of tea trees and promote the horizontal expansion of tea branches. Therefore, the tree height is usually between 0.8 and 1.2 meters. The economic age of tea trees is generally 50 to 60 years. Tea originated in China, and it existed before people discovered and used it. China is known as the "hometown of tea". There are written proofs that people have begun to cultivate and use tea trees as early as the Shang and Zhou dyn...
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