According to gradient theory early-developing regions should have mass transfer from early-developing regions to late-developing regions, but it does not happen as expected.
按照区域梯度理论应该发生的先发区域边际产业向后发区域的大规模转移，却没有按照预期的发生。
Since the counter-gradient transfer may occur in the convective boundary layer K-theory is inadequate there.
对流边界层中存在反梯度输送，因而K理论的应用受到限制。
Since the counter-gradient transfer may occur in the convective boundary layer K-theory is inadequate there.
对流边界层中存在反梯度输送，因而K理论的应用受到限制。
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