acid-free paper 中文意思是什麼

acid-free paper 解釋
無酸紙，已在製造過程中除酸的紙張，保存期較長
  • acid : adj. 1. 酸味的。2. 【化學】酸的，酸性的。3. 〈比喻〉尖酸刻薄的，易怒的。n. 1. 酸味物。2. 【化學】酸。adv. -ly ,-ness n.
  • free : adj （freer; freest）1 自由的，自主的；自立的。 a free action 自由行動。 free competition 自由競...
  • paper : n 1 紙；裱墻紙。2 報紙，報。3 收據；債券；證券；票據；匯票；鈔票（＝paper money）。4 〈pl 〉身份...
  1. This paper introduced the improves of roasting - sodium processing and such pollution - free processing as acid leaching - extration, roasting in air - acid leaching - extration, liming roasting - alkali leaching on extraction of v2o5 from stone coal, the total recovery rate obtains enhances, the industrial application prospect is good

    摘要介紹了石煤提釩傳統工藝的改進以及酸法萃取、無鹽焙燒酸浸萃取、氧化焙燒堿浸等幾種從石煤無污染提取五氧化二釩的工藝流程，上述工藝不但生產過程無環境污染，釩的回收率還大有提高，是很有前途的清潔生產工藝。
  2. White acid free tissue paper inside the box

    盒內裝有無酸的白色紙巾。
  3. The full set of 1999 hong kong definitive stamps is beautifully arranged in an elegant wooden black frame and mounted on environmental friendly acid free paper to ensure its long - lasting appreciation value. " issued in a limited edition of 2000 sets only, every frame is uniquely mounted by hand and numbered individually, " added mr luk

    一九九九年香港通用郵票畫架設計精美，以典雅的黑木作外框，整套郵票排列在不含酸性的環保紙上以確保能恆久珍藏。陸炳泉續說：這款郵票畫架限量發行二千套，每套均由人手裝嵌並且有獨立編號。
  4. We will mount the historical photographs on acid - free or low alkaline paper. then the photographs can be stored inside archival boxes which are acid - free or low alkaline. this can prevent the contamination of the surface of photographs by dirt particles and wrapping paper that may lead to the chemical reaction like oxidation, yellowing and colour fastness

    部份藏品如歷史圖片及明信片更需要特別的保護，博物館會使用不含酸性或低鹼度的紙張及紙板裝裱歷史圖片，再存放于不含酸性或低鹼度的紙盒內，防止圖片上藥膜受到空氣及一般包裝紙的雜質污染而產生化學作用，如圖片氧化、變黃、退色等。
  5. Printed on acid - free paper

    可瀏覽文摘。
  6. Why is it important for paper or board to be acid - free and lignin - free

    為什麼無酸和無木質素的包裝紙張或紙板是重要的？
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