Double layer anti fake label bottom label has strong anti transfer ability.

双层防伪标签底层标签具有很强防转移才能。

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Double film theory shows that the mass transfer outside the droplets is the controlling step.

通过双膜理论分析得知，滴外传质是萃取过程的控制步骤。

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Double film theory shows that the mass transfer outside the droplets is the controlling step.

通过双膜理论分析得知，滴外传质是萃取过程的控制步骤。

youdao