请将下面这段话翻译成英文：
固定资产投资
固定资产投资是指投资主体垫付货币或物资，以获得生产经营性或服务性固定资产的过程。固定资产投资包括改造原有固定资产以及构建新增固定资产的投资。由于固定资产投资在整个社会投资中占据主导地位，因此，通常所说的投资主要是指固定资产投资。固定资产投资是社会固定资产再生产的主要手段。
参考译文
Fixed Assets Investment
Fixed assets investment refers to the process in which an investment entity advances money or goods to obtain production and operation or service-based fixed assets. Fixed assets investment includes the investment in the modification of the original fixed assets and the building of newly added fixed assets. Since it plays a leading role in the whole social investment, fixed assets investment, the investment in common terms refers mainly to the fixed assets investment, which is a major measure of the reproduction of social fixed assets.
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