回声测深

Fathometer: A device for measuring water depth by timing sonic reflections from the water bottom; an echo sounder.

通过计算声波从水底返回时间来测量水深的一种仪器；回声测深仪。

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。

I have not allowed an official holiday, are one or two months to once menopause is now three months, May 20 B overtime doctor said endometrial thickening may Come official holiday, and June 2 progesterone started to play a five-day, one has so far not come to an official holiday, I used dipstick test has two lines, above, a comparison test line deep below the control line is pink , June 13 to go to the hospital, I am super-B, the doctors have not seen anything that may not yet intrauterine, asking me to check again after seven days, B-list so written "before the uterus, and slightly large, muscular wall echo uniform endometrial thickening 1.2CM, no ……"I now do not know how to do, I do not know any expert can give me some advice?

我例假一直不准，都是一两个月来一次，现在已经停经三个月了，5月20号B超时医生说子宫内膜增厚，可能快来例假了，6月2号开始打了五天黄体酮，一直到现在也没来例假，我用试纸测有两条线，上面一条检测线比较深下面的对照线是粉红色的，6月13号上午我去医院B超，医生说还没看到什么东西，可能还没到宫腔，要我七天之后再去检查，B超单上这么写的&子宫前位，稍大，肌壁回声均匀，子宫内膜增厚1.2CM，未见……&我现在已经不知道怎么办了，不知道哪位专家可以给我点意见？

Type'.'' of equipment including multi-beam echo sounders.

类型'。''的设备，包括多波束回声测深仪。

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

在合适的位置布置有安装回声测深振荡器的舱室。

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.

本文详细介绍了回声测深仪和GPS的工作原理、发展现状以及本系统采用的硬件类型；还介绍了整个系统的控制流程、系统误差的控制、软件开发工具Delphi的编程规则、监控界面的设计；最后还详细介绍了系统在实际测量过程中的应用以及其优越性。

Use echo sounder frequently when passing shallow water.

通过浅水域时，要常用回声仪测深。

Multibeam echo sounder, Sound ray tracing, GPS kinematic surveying technology, Sonar image, Data combination

多波束回声测深系统，声线跟踪， GPS 动态测量技术，声纳图像，数据融合

Based on single beam echo sounder, the MES was developed in the seventies of the twentieth century. Using the equipment, in the profile formed by samples within a ping, about more than one hundred depth datum and more than one thousand backscatter samples are observed.

20世纪70年代出现的多波束测深系统，是在单波束回声测深系统的基础上发展起来的，它能够在测量断面内，一次给出几十个甚至上百个深度点，几百个甚至上千个声强采样数据，对测量区域实施全覆盖式测量。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。