音标：['sәunɑ:] ；

n. 声纳
[计] 声纳

n. a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return

词型变化：名词复数形式 : sonars

词性分布：

名词100%

sonar的用法和样例：

例句

用作名词(n.)

Cavitation is noisy and easily detected by sonar.空泡现象是有噪声的并且容易被声纳探测到。
We picked up two submarines on sonar.我们用声波定位仪观察到两条潜水艇。

词汇搭配

sonar equipment声纳装置
passive sonar被动声纳
panoramic sonar周视声纳
scanning sonar扫描声纳
sonar navigation声波导航
sonar communication声纳通信
parametric sonar参量声纳
communication sonar通信声纳
sonar target声纳目标
active sonar主动声纳
digital sonar数字声呐
sonar transducer声纳换能器
sonar receiver声呐接收机
shipboard sonar舰艇声纳
sonar projector声纳发射器
sonar system声纳脉冲测距系统...
sonar indicator声呐指示器
towed sonar拖曳声纳
navigation sonar导航声纳

【近义词】

echo sounder回声探测器
Asdic潜艇探索器的一种...

听电影学英语—泰坦尼克号 01

[01:36.60]【铁达尼号】 [02:18.36](Sonar Pings) [02:21.60]Man: 13 meters. You should see it. 距离13公尺，应该看得见了 [02:33.84](Sonar Pings) [02:38.52]Okay, take her up and over the bow rail. 越过船头的栏杆 [02:39.20](Over

发表于:2018-12-07 / 阅读(57) / 评论(0)

听电影学英语—泰坦尼克号

2005年NPR美国国家公共电台三月-Beached Dolphins May Be Related to Sonar

Marine Biologists and volunteers in Key Largo are working to save the survivors of a group of dolphins that beached themselves last week in the Florida Keys. Invesigators are trying to determine if sonar from a nuclear-powered submarine played a role

发表于:2018-12-17 / 阅读(146) / 评论(0)

2009年NPR美国国家公共电台7月

SSS 2009-11-27

It really is rocket scienceresearchers are using huge x-ray scanners from NASA to understand how sonar might be affecting the hearing of large ocean mammals. These scanners are usually used to inspect the space shuttles solid fuel rockets. Navy sonar

发表于:2018-12-24 / 阅读(53) / 评论(0)

Scientific American(十一)月

ENVIRONMENT REPORT - Compromise on U.S. Navy Sonar

ENVIRONMENT REPORT - November 22, 2002: Compromise on U.S. Navy Sonar By Cynthia Kirk This is the VOA Special English ENVIRONMENT REPORT. The United States Navy has agreed to temporarily limit testing

发表于:2019-01-02 / 阅读(69) / 评论(0)

健康与环境

ENVIRONMENT REPORT - Navy Sonar and Ocean Animals

ENVIRONMENT REPORT – August 2, 2002: Navy Sonar and Ocean Animals By Caty Weaver This is the VOA Special English Environment Report. American officials have approved a plan for the United States Nav

发表于:2019-01-07 / 阅读(59) / 评论(0)

健康与环境

新西兰英语 554 Debris from Rena

Debris from the Rena has reached beaches in the Coromandel. There are bags of milk powder, plastic and rope on the beaches and broken containers. The sea around the Rena is white from broken bags of milk powder. There is also oil for about 3km around

发表于:2019-02-17 / 阅读(45) / 评论(0)

新西兰英语

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