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KDJ里的D值同时小于20大

(CLOSE-MA(CLOSE,120))/STD(CLOSE,120)>1 AND REF((CLOSE-MA(CLOSE,120))/STD(CLOSE,120),1)<=1 AND (CLOSE-LLV(LOW,30))<=0 AND (CLOSE-LLV(LOW,120))<=0 AND KDJ(D,9,3)<20 AND KDJ(D,9,3)>0