The input ends of positive phase and negative phase of the first time-delay unit are respectively connected with the output ends of positive phase and negative phase of the last time-delay unit.
每一级正相和负 相信号输出端分别与各输出缓冲电路的正相和负相输入端相连。
The labor transition effect of FDI is negative at the first phase of dual economy and accelerates the formation of n-shape curve at the second phase of international trade.
FDI的劳动转移效应在二元经济的第一阶段是负的，第二阶段加快了n曲线的形成。
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