• Model NO.: XM
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The grass-roots agro-technical popularization in our country is promoted and implemented under the national policy. Many problems will arise in this process. How to do a good job in the reform and construction of grass-roots agricultural technology extension system is the key to .......

When the pressure in the high pressure chamber of the compressor reaches 180, the casing begins to undergo expansion deformation. When the compressor is compressed, such high pressure cannot be achieved due to motor torque limitation. Therefore, there may be abnormal physical and chemical.......