...g/dm2范围内，78.7%的擦拭样品超过美国住房和城乡建设部（United States Department of Housing and Urban Development,US HUD）规定的健康风险基准值（2.69 μg/dm2），推焦车表面Pb含量最高.
双语例句
1
Based on the update data announced by HUD and other agencies, main kinds and preferential policies of us housing taxation are introduced, the effects of u.