美国俄克拉荷马州BokenArroW集团CDI公司最近推出了一种叫做GeoEAR的电声接收器，这是一种用于监听清音器在管线内通过的结构紧凑、便携式、野外使用的装置。这种系统由一个可乐流着杆线橘太地下的听声探头（传感器）。GeoEAR电子单元，一付耳机和一个键盘组成。它有名个C＄电 CDO, of BokenArroW Group, Oklahoma, USA, recently introduced an electroacoustic receiver called GeoEAR, a compact, portable, field-based device for monitoring the passage of a sounding pipe within a pipeline. This system consists of a Coke flow rod orange too audible probe (sensor). GeoEAR electronic unit, a pair of headphones and a keyboard. It has a name C $ electricity