Ecosystem Matter Exchange ppt (Education Edition 9) Courseware

The science and technology edition of the E-education Edition "Ecosystem Material Exchange" ppt The input and output of mineral elements between ecosystems. Their flow and exchange between the atmosphere, the hydrosphere, the lithosphere, and the living things are called material circulation of material), that is, the biogeochemical cycle.

The hose is a kind of cosmetic packaging material widely used in cosmetic packaging. Among them, facial cleanser and facial cleanser are the most used, and other skin care products such as BB cream and gel are also used.

      The hose is divided into single layer, double layer and multiple layers. There are differences in anti-pressure, anti-seepage and hand feeling. Double-layer tubes are more common. Single-layer can also be used in the middle and low-grade. The hose diameter has 13#-60# multiple calibers. The hose can be screen printed, bronzing and hot. Printing methods such as transfer printing and offset printing, silk screen printing is the most common printing method. Monochrome printing is commonly used for vertical rotary screen printing machines, while multi-color overprinting hoses require horizontal rotary screen printing machines. The horizontal rotary Screen Printing Machine uses a clamp to clamp the continuous printing process.

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