... 计算机用 纸accounting machine paper 无酸 纸acid free paper 耐酸 纸acid proof paper，acid resistant paper ...
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他们还建议将它包装的距离在一无酸，密封箱。
They also recommend that it be packed away in an acid-free, sealed box.
我建议你有你的一块专业的产品与无酸框架，以避免您的织物泛黄。
I suggest you have your piece professionally framed with acid free products to avoid yellowing of your fabric.
用瓶盖的内圈，在薄纸板或无酸水彩纸上画一个圆圈，并用剪刀剪出来。
Start off by tracing the inner portion of your cardboard and cut out the circle.
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