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How is the nano material made? In terms of size,The size of small particles that usually produce significant changes in physical and chemical properties is 0.Below 1 micron (note 1 M = 100 cm,1 cm = 10000 microns,1 micron = 1000 nm,1 nm = 10 ER ),That is, less than 100 nm.Therefore,The particle size is 1 ~ The particles of 100 nm are called super-particle materials,It is also a nano-material.Nano-metal materials were successfully developed in the 1980s,Later, nano-semiconductor films, nano-ceramics, nano-porcelain materials and nano-biomedical materials were published one after another.The nano-scale structural materials are referred to as nano materials ),It means that the size of its structural unit is between 1 nm ~ Between 100 nanometers.Since its size is close to the coherent length of the electron,Because of the self-organization brought by strong coherence, its properties change greatly.And,The scale is close to the wavelength of light,In addition, it has the special effect of large su
Aquarium front filter The filter of household filter water cannot be used as a fish tank filter. the filter of household filter water is mainly a physical filter. the fish tank filter is mainly filtered by biology. the filter of household filter water is easy to block, and it is not conducive to the growth of nitrobacteria.The CY20 power is only 3 watts, and the front belt is not moving. if you want to bring the front or change the large filter bucket, do you mean to use the CY-20 filter bucket with a filter for domestic water, no, there is not so much power in the CY-20, more water is inhaled, the water is small, and the water pump is easy to burn out.
