Biodegradable cutley refers to cutley that can undergo biochemical reactions under the action of microorganisms (bacteria, molds, algae) and enzymes in the natural environment, causing mildew in appearance to change in internal quality, and finally forms carbon dioxide and water. There are two kinds of materials used for degradable tableware: one is made of natural materials, such as paper products, straw, starch, etc., which are degradable and are also called environmentally friendly products;
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Many flowers have evolved to be attractive to animals, so as to cause them to be vectors for the transfer of pollen. After fertilization, the ovary of the flower develops into fruit containing seeds. In addition to facilitating the reproduction of flowering plants, preserved flowers have long been admired and used by humans to bring beauty to the environment, and also as objects of romance, ritual, esotericism, witchcraft, religion, medicine, and as a source of food.
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The air compressor is used because the compressed air is stored in the tank by the compressor during the working process. Due to the high pressure, more heat energy is generated. If the temperature cannot be cooled in time, it may cause overheating and cause risks. The air compressor cooler is a machine used for cooling to cool down, which can better maintain the continuous operation of the air compressor.
http://www.vrcooler.com/air-compressor-cooler/

Electrostatic powder coating gun is mainly composed of powder supply barrel, powder spray gun and controller. It is a special spray gun for electrostatic spraying of paints and powder coatings. It is both a paint atomizer and an electrostatic electrode generator. The powder needs to be charged to the workpiece to form an effective coating to protect and decorate the workpiece. Usually, a powder spray gun that can generate high-voltage static electricity is used as a production tool for powder coating.
http://www.powdercoatmachine.c....om/powder-coating-gu

A puzzle is a game, problem, or toy that tests a person's ingenuity or knowledge. In a puzzle, the solver is expected to put pieces together in a logical way, in order to arrive at the correct or fun solution of the puzzle. There are different genres of puzzles, such as crossword puzzles, word-search puzzles, number puzzles, relational puzzles, and logic puzzles. The academic study of puzzles is called enigmatology.
http://www.nbuli.com/puzzle/