您要找的是不是：
回声纳
以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译
后部声纳系统
It moves the steering wheel, using sonar to gauge distances, and offers the driver front and back video views.
FORBES: 10 High-Tech Luxury Cars
The robot has eight sonar detectors as built-in obstacle detectors, in front, back, and side.
CNN: AmigoBot can be controlled over the Internet
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。