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After a few hours the projection and sillage were unchanged

Plant cell suspension culture system requirements: The cell culture is well dispersed and the cell clusters are small Uniform cell shape and cell cluster size Cells grow rapidly The liquid shaking culture adopted has the following important functions: Oscillation can exert a gentle rheological force on the cell clusters in the culture medium, breaking them into small cell clusters and single cells Oscillation is conducive to the uniform distribution of cells in the medium and the exchange of substances between the medium and cells The flow of the culture medium is conducive to the gas exchange between the medium and the air in the container through the gas-liquid interface, ensuring the oxygen required for cell respiration, enabling the cells to grow rapidly, and also conducive to the removal of carbon dioxide Figure 1

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But similar proposals often termed policies for tobacco-free generations (TFG) are now being considered at the national level by several countries