环形线圈式车辆 检测器 loop detector: 环路型侦测器vehicle detector: 车辆检测器; 车辆侦测器; 侦车器inductive detector loop: 电感探测线圈loop position detector: 活套位置检测器phase-locked loop detector: 锁相回路检波器下载手机词典可随时随地查词查翻译