求翻译：RA is a chronic autoimmune disease characterized by relapsing and remitting course of joint inflammation. The chronic inflammation process leads to an excessive hyperplasia of the synovium with proliferation of the synovial lining cells, generation of new blood vessels and diffusely scattered or nodular mononuclear cell infiltrates. The proliferation and invasive growth of fibroblast-like cells of the synovium (SFC) result ultimately in the destruction是什么意思？

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