现在许多家庭都藏有书刊,但不少家庭由于保管不善,常使书刊受到损坏,甚至丧失阅读价值。家庭应怎样才能保藏好书刊呢?归纳起来,应严格做到以下“四防”:一防日晒书刊在阳光下曝晒,会加快纸张纤维的氧化,久而久之使纸张变脆,极易出现破损。因此,书 Many families now have books and periodicals, but many families often damage their books and magazines and even lose their reading value due to poor custody. In summary, the following “four defenses” should be strictly fulfilled: a sun-protection publication exposes the sun to light and accelerates the oxidation of the paper fibers. As time passes, the paper becomes brittle and prone to breakage. So book