I had to keep adjusting the radio dial to make the station come in clearly.为了清晰地收听到电台，我只得不断地调节收音机的调台盘。You turn this dial to find a different radio station.转动这个旋钮可选择不同的广播电台。How long does it take for the dial to rotate through a full circle?刻度盘转一整圈需要多长时间？She looked at the dial to check her speed.她看了看仪表盘以确认自己的速度。