基本解释回声测深记录同根派生 echo-gram相关词英汉例句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。echo-gram更多例句