echo-sounding
英语音标
英式：[ˈekəʊsˈaʊndɪŋ]美式：[ˈekəʊsˈaʊndɪŋ]
英语翻译
回声测深
英语例句
It also carries out surveys through two specially-designed vessels which are fitted with the latest type of equipment including multi-beam echo sounders. 该部配备两艘经过特别设计的测量船，船上装有最新类型的设备，包括多波束回声测深仪。
