A move above zero would be used as a buy sign, while a cross below zero can be used as a sell signal.

向基准线之上的移动被认为是买入信号，向下则为卖出信号。

youdao

A move above zero would be used as a buy sign, while a cross below zero can be used as a sell signal.

向基准线之上的移动被认为是买入信号，向下则为卖出信号。

youdao