ar.chi.val
adj.（形容词）Of, relating to, kept in, or suitable for archives:档案的：档案的，与之有关的，保存于其中的，或适于它的：例句：.An archival material should have a neutral or slightly alkaline pH; it should also . . . have good aging properties.(Artist`s Magazine).档案材料应具有中性或略呈碱性的PH值；它也应…具有良好的老化性能.(艺术家杂志)
