商品市场

zhè yàng zuò de mù dì shì fáng zhǐ bǎo zhàng xìng zhù fáng de fáng yuán liú xiàng shāng pǐn shì chǎng cóng ér bǎo hù bǎo zhàng xìng zhù fáng qí shè huì gōng gòng zī yuán de shǔ xìng

这样做的目的是防止保障性住房的房源流向商品市场，从而保护保障性住房其社会公共资源的属性。

The aim is to prevent the indemnificatory housing resources flowing to the commodity market and to protect the houses' public resource properties.