multi-frequency fish finder多频率探鱼仪
fully-transistorized fish finder全晶体管化探鱼仪
multi-stylus fish finder多笔记录式鱼探仪;[水产] 多波束探鱼仪
As a mean to detect marine biological resources, the fish-finder can show the user many informations about fish, such as: presence, location, distance, even the species of the fish. The research of fish-finder also meets china's offshore fishery development direction.
渔探仪作为探测海洋生物资源的一种手段，可以在船航行时利用声波探测鱼群及其他渔业生物的有无、方位、距离及种类等信息，对渔业生产提供了极大的帮助。
参考来源 - 一种便携式多波束渔探仪的设计和研发