游离二氧化硅致肺组织纤维化机制十分复杂，涉及多种细胞及生物活性物质参与的炎症反应、免疫反应、异物反应、细胞毒作用等。

The mechanism of fibrosis caused by free silica particles involves a lot of cells and reactions including inflammatory reaction, immunological reaction, foreign body reaction and cell toxic action.

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制备了以超细二氧化硅为载体的氰乙基化可溶性蛋白质-钯催化剂，研究了它对三丁基锡氢化物和酰氯化合物偶联反应的催化活性。

Silica supported cyanoethylated soluble protein-Pd has been prepared and its catalytic activity in the cross-coupling reaction of tributyltin hydride and acid chlorides was studied.

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