频率调节滑钮
/ˈfɹiːkwənsi ˈsɛtɪŋ ˈslaɪd kəntɹˈəʊl/
n
English: frequency setting slide control · 频率调节滑钮
English · frequency setting slide controlEspañol · cursor de ajuste de la frecuenciaFrançais · curseur de réglage de la fréquence
释义：Sliding part used to tone down or amplify the sound signal associated with a given frequency band.