-These projects have similar disadvantages:<br>-1) investment for investment, without blind introduction of foreign greenhouses according to the actual situation<br>-2) the corresponding planting technology and management level does not match the advanced automation level<br>-3) the design of greenhouse engineering is the first, and the planning and technological scheme are the last<br>-4) the market positioning of the products is not in line with the current national conditions<br>
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