误差

error; difference; inaccuracy

降低

reduce; lower; decrease; cut; drop; downgrade; devalue; lessen; weaken; degarde; debase; cheapen; screw down; reduction; abasement; debasement; down; abasable

最小

smallest; minimum; least; tiniest; min.

程度

degree; extent; level; magnitude; scale; dimension; -ness; -ity