n. （钢琴的）制音器( damper的复数形式 ); 减震器; （火炉等的）风门; 使人扫兴的人（事）
英文释义
n. a movable iron plate that regulates the draft in a stove or chimney or furnace
n. a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations
n. a depressing restraint