求翻译：本文采用纤维素粉，通过先与氯乙酸反应醚化后交联和先交联后与氯乙酸反应醚化两种方法制备交联羧甲基纤维素钠是什么意思？

In this paper, cellulose powder, by chloroacetic acid reaction etherification, crosslinking and the first cross-linking reaction etherification with chloroacetic acid are two ways to prepare cross-linked sodium carboxymethyl cellulose

In this article, by first cellulose powder with chloroacetic acid reaction to the ethers, and after the first with chloroacetic acid reaction of dimethyl ether produced two different ways to the American methyl cellulose sodium

This article uses the cellulose powder, through after the chloroacetic acid responded first the etherification crossing linking and crosses linking first and the chloroacetic acid response etherification two method preparation crossing linking carboxymethylcellulose sodium

This article uses cellulose powder, by first post Crosslinking reaction of chloroacetic acid etherification and Crosslinking reaction of chloroacetic acid ether after first two methods of preparation of crosslinked sodium carboxymethyl cellulose

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