求翻译：与纳米二氧化硅发生亲和取代反应，使纳米二氧化硅交联固定在N-羧甲基壳聚糖上，形成一种新型的N-羧甲基壳聚糖负载纳米二氧化硅复合材料；是什么意思？

Pro-substitution reaction, the nano-silica cross-linked n-carboxymethyl chitosan to form a new type of n-carboxymethyl chitosan load nano-silica composites with the nano-silica ;

With 2 nm silicon dioxide (a pro-and replace response to NM 2 to the silicon dioxide (fixed in N - American methamphetamine sugar shell together to form a new type of N - American methamphetamine "Load nm silicon dioxide (2 composite materials;

Occurs with a nanometer silicon dioxide kisses with the substitution reaction, causes nanometer silicon dioxide crossing linking to fix on the N- ethyloic shell polyose, forms one kind of new N- ethyloic shell polyose load nanometer silicon dioxide compound materials;

Affinity with the Nano-silica substitution reaction, make Nano-silicon dioxide fixed on the n-carboxymethyl Chitosan, formed a new type of nano-silica composite n-carboxymethyl Chitosan loaded;

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