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The flux through the wall of the vortex tube is zero by its definition.
根据涡管定义，穿过涡管管壁的涡量为零。
youdao
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The essence is to realize the secondary purification by adopting the vortex chamber.
其实质是采用旋涡室而实现二级净化。
youdao
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The essence is to realize the secondary purification by adopting the vortex chamber.
其实质是采用旋涡室而实现二级净化。
youdao