In the next developing stage of microdroplets, since the overall quality of the microdroplets system on QCM shows an increasing trend ( Figure 3 ), it is necessary to clarify the source of microdroplets in this stage.
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In the next developing stage of microdroplets, since the overall quality of the microdroplets system on QCM shows an increasing trend ( Figure 3 ), it is necessary to clarify the source of microdroplets in this stage.