目前国内对各种保密材料、废旧文稿、印刷不良的纸币和邮票等大都采用焚烧或在造纸厂监护销毁的办法。这些销毁方法不是严重污染环境,就是费时费工,更严重的缺点是易于失密。为确保国家机密,减少损失,中央和地方党政军机关以及货币、邮票、有 At present, most domestic methods for the use of confidential materials, scrap documents, poorly printed banknotes and stamps, etc., have been incinerated or guarded and destroyed at paper mills. These destruction methods are not serious pollution of the environment, or it is time-consuming and labor-consuming, and the more serious drawback is that it is prone to loss of confidentiality. To ensure state secrets and reduce losses, the central and local Party, government, and military agencies, as well as currency, stamps, and