acid-free
adjective
UK/ˌæs.ɪdˈfriː/
US/ˌæs.ɪdˈfriː/
Definitions of acid-free adjective
Describes a material, typically paper, that is manufactured without harmful acids, thus preventing deterioration over time.
不含酸性的
To protect old photographs, use an acid-free photo album.
為了保護舊照片，請使用無酸性相冊。
The museum uses acid-free paper to store its precious archives.
博物館使用無酸性紙張來保存其珍貴的檔案。
Artists often choose acid-free canvas to ensure the longevity of their artwork.
藝術家通常選擇無酸性畫布以確保其藝術品的壽命。