低位集中

X_1:=COST(85);
X_2:=COST(15);
X_3:=X_1-X_2;
X_4:=(X_1+X_2)/2;
X_5:=X_3/X_4*100<10;
X_6:=HHV(HIGH,250);
X_7:=LLV(LOW,250);
X_8:=X_6-X_7;
X_9:=X_4-X_7;
X_5 AND X_9;