Besides well known rating methods, a new one is proposed which may be taken to rate either soundinsulation of a partition or noise reduction in the room.
文中综合了现有单值评价方法的优点,提出能使构件隔声与室内噪声取得协调的评价方法。
2
The Hou Qi room in 《Xu Han Shu-Lu Li Zhi》and the soundinsulation from the urn wall records by Fang Yizhi embody sound insulation technology of the ancient China.