adj.保存的；保留的
动词preserve的现在分词形式.
A card or sheet of microfilm capable of accommodating and preserving a considerable number of pages, as of printed text, in reduced form. 缩微平片一个缩微胶卷片，能够以缩微形式容纳并储存相当多数量的页数，如一印刷文本的
Tending to preserve or capable of preserving. 有保护能力的倾向于保护或保存的，有保护或保存能力的
