acoustic absorptivity

例句：

1. 1.The absorption of sound in the room is high, making it difficult to hear conversations clearly.
   房间的声学吸收率高，使得对话难以听清楚。
2. 2. The acoustic absorptivity of the materials used in the construction was carefully measured and tested.
   用于建筑的材料的声学吸收性被仔细测量和测试。
3. 3. The absorption of sound waves by the material is directly related to its acoustic absorptivity.
   材料对声波的吸收与其声学吸收性直接相关。