Damper
01
制音器, 用于使钢琴弦静音的木质垫
a wooden pad that is used to silence a piano string
02
抑制因素, 障碍
something or someone that has an inhibiting influence on a particular thing and makes it less successful, pleasant, etc.
03
阻尼器, 减震器
a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations
04
风门, 调节板
a movable iron plate that regulates the draft in a stove or chimney or furnace



























