A device used underwater to produce pulses of sound, as for an echo sounder .

聲脈沖發(fā)送器置于水下產(chǎn)生聲脈沖的裝置一级黄色在线观看，如回音器中的裝置

A device used underwater to produce pulses of sound, as for an echo sounder.

我申請(qǐng)了幾家公司大陆精品国产AV成拍色拍，其中一家答應(yīng)給我一份工作日韩视频中文字幕无码不卡，但我想等另外幾家公司有了回音再作決定精品国产群3p在线交换。

Alternatively, you can learn to recognize the chord progressions, which is not easy either, and develop a sounder approach using theory.

或者，你可以學(xué)習(xí)識(shí)別和弦的進(jìn)行欧美乱妇高清免费99，并從理論上發(fā)展出來(lái)一套更為全面的方法西欧免费人人操,人人爽。這也不容易做到。

Activation of the echo sounder when ordered by the Master.

在船長(zhǎng)的指令下開(kāi)起測(cè)深儀亚洲一级特黄aa毛片试看。

For echo sounder oscillator, compartment to be arranged at suitable location.

在合適的位置布置有安裝回聲測(cè)深振蕩器的艙室强奸在线小视频。

A Activation of the echo sounder when ordered by the Master.

在船長(zhǎng)的指令下開(kāi)起測(cè)深儀。

What may affect the accuracy of sounding with echo sounder?

答案：D什么會(huì)影響回聲探測(cè)儀的精度色妞一区二区三区免费视频？水的溫度和密度

What may affect the accuracy of sounding with echo sounder?

Key：D 什么會(huì)影響回聲探測(cè)儀的精度久久久久亚洲精品中文字幕A片？水的溫度和密度

We have also as the first manufacturer in the world introduced a combined system, which is type approved and equipped with a Wheel Mark, of a speed log and an echo sounder.

我們還作為第一個(gè)制造商在世界上介紹了組合系統(tǒng)，這是型核準(zhǔn)免费无码A片国在线看视频，并配備了車(chē)輪馬克国内精品一区二区三区香蕉，一個(gè)速度日志和測(cè)深儀。

It will introduce the theory, current status and hardware of echo depth sounder and GPS. Also introduce the control flow of system, how to control the system errors, program rules of software, design of monitoring interface and the application in actual measuring process and advantage.

本文詳細(xì)介紹了回聲測(cè)深儀和GPS的工作原理日韩综合无码视频一区二区三区、發(fā)展現(xiàn)狀以及本系統(tǒng)采用的硬件類(lèi)型最近最新中文字幕视频；還介紹了整個(gè)系統(tǒng)的控制流程、系統(tǒng)誤差的控制美女强奸毛片、軟件開(kāi)發(fā)工具Delphi的編程規(guī)則一级黄色片日本、監(jiān)控界面的設(shè)計(jì)；最后還詳細(xì)介紹了系統(tǒng)在實(shí)際測(cè)量過(guò)程中的應(yīng)用以及其優(yōu)越性热久久久久。