submarine sound receiver水下: undersea; underwater器: implement; utensil; ware听声器: acoustic detecting apparatus; phonendoscope水下听觉: underwater hearing水下听音器: hydrophone下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:水下听声器,即可在微信中查询翻译