silent-sound
美
英 
例句
They set up huge radio transmitting towers near the battle zone and transmitted powerful Silent Sound messages to the Iraqi's to surrender.
他们在战争区设置了巨大的无线电波传输塔,并传输强大的沉默声音信号给伊拉克人,使其投降。
The Mind Control Machine converts your voice into something called Silent Sound.
精神控制仪器转换你的声音成为某种事物,叫做沉默的声音。