请教，我这是从图片重新录入的选股公式，老是显示有错误，请指教

缩半量2日:=
REF (VOL,1)<REF (VOL,2) AND REF (VOL,2)<REF (VOL,3) AND
REF (VOL,1)<8.5*REF (VOL,3);
缩半量3日: = REF (VOL, 0)<REF(VOL,1) AND REF(VOL,1)<REF(VOL,2) AND
REF (VOL,2)<REF(VOL,3) AND REF (VOL,0)<8.5*REF (VOL,3);
缩半量:=缩半量2日 OR 缩半量3日;
周期:=3;
大量:=REF(VOL,3);
均量:=
MIN6(REF(MA(VOL,5),周期+2),REF(MA(VOL,5),周期+3),
REF (MA(VOL,5),周期+4),REF(MA(VOL,10) ,周期+2)，
REF (MA(VOL,10),周期+3), REF(MA(VOL,10),周期+4));
冲板:=HIGH=ZTPRICE(REF(CLOSE,1),0.1);
形态521:=EXISTR(冲板，周期+3,周期-1) AND大量>5*均量AND缩半量;
倍量板:=
VOL>2*LLV(VOL,8) AND HIGH=ZTPRICE(REF(CLOSE,1),0.1) AND
CLOSE/OPEN>1.03 AND CLOSE/LLV(L0W,10)<1.35;
流值:=FINANCE (40)>1000000000 AND FINANCE(40)<1200000000;
强庄521选股:
EXISTR(形态521,30,1) AND NOT(EXISTR(倍量板,3,1)) AND倍量板AND流值;

输入通达信，还是有错误，请教一下，怎么修改