你知道这两个通达信公式代表什么意思吗？CLOSE-MACLOSE120STDCLOSE1201 AND REFCLOSE-MACLOSE120STDCLOSE1201=1;CLOSE-MACLOSE30STDCLOSE301 AND REFCLOSE-MACLOSE30STDCLOSE301=1;参考这两个公式请帮我写一个通达信公式就是K线同时触碰到30分和120分下轨并开始反弹

((LOW-MA(LOW,30))/STD(LOW,30)<-1 AND (LOW-MA(LOW,120))/STD(LOW,120)<-1) AND (REF((LOW-MA(LOW,30))/STD(LOW,30),1)>=-1 AND REF((LOW-MA(LOW,120))/STD(LOW,120),1)>=-1) AND ((HIGH-MA(HIGH,30))/STD(HIGH,30)>=1 AND (HIGH-MA(HIGH,120))/STD(HIGH,120)>=1) AND (REF((HIGH-MA(HIGH,30))/STD(HIGH,30),1)<=1 AND REF((HIGH-MA(HIGH,120))/STD(HIGH,120),1)<=1)