括号里面的物品的意思是对物品有效，不是说只有物品才需要过sr和豁免
(object)
The spell can be cast on objects, which receivesaving throwsonly if they are magical or if they are attended (held, worn, grasped, or the like) by a creature resisting the spell, in which case the object uses the creature’s saving throw bonus unless its own bonus is greater. (This notation does not mean that a spell can be cast only on objects. Some spells of this sort can be cast on creatures or objects.) A magic item’s saving throw bonuses are each equal to 2 + one-half the item’s caster level.

沉默术施展在物体上是可以移动的。3r施法者理因对这类效果有对策。3r施法者从来不缺杀招，缺的是动作，比如别人法术反制就行了