For example... After the terrific earthquake stuck, many couples of buildings 受損 (substance or something stuff is damaged)... the government said 損失 is inestimable.

受损= (Be) damaged, normally is used in passive sentence. 两百台车辆在爆炸中受损。 Two hundred card were damaged in explosion. 损失= lose(base verb),lost(past form and past participle) ; loss (noun)

损失即可以当名词使用也可以当动词使用，而受损则一般只当动词使用。Generally speaking,损失 can be a noun,and also can be a verb.but 受损 can be a verb only.例如： 龙卷风过后，这里的学校和民房严重受损(vi.)。政府正在统计损失(n.)。几天后，政府公布了统计结果，当地一共损失(vt.)了100栋房屋。