永久性

Product dispositioned for scrap shall be conspicuously and permanently marked, orpositively controlled, until physically rendered unusable.

决定销毁产品应该被打上明显永久性标记，或者被严格控制，直到经过处理而真正不可再用为止。

The area ( s ) on magnetic disks used for work in process ; not permanent or even semipermanent.

用来进行磁盘域,它不永久性甚至不半永久。

Deforestation (disafforestation) The permanent removal of forests, especially by means of logging for commercial timber and clearing for agriculture and human settlement.

砍伐森林（滥伐）：为了商业使用，农田开垦以及人类建筑用地永久性移除森林。

A file of data considered permanent or semipermanent, i.e., an arrangement or ordering of a series of record; also, a single record from such a file.

一种永久性或半永久性数据文件,也就一系列记录排列和定序;也指这种文件中单个记录。