查询词典 by sea

The composite scattering between dielectric sea surface and a conducting plate above it is calculated by using Physical Optical method and reciprocity theorem. Meanwhile, the dependence of the plate size on the composite scattering field is considered. The Doppler spectrum and the chaotic characteristic for the time series of composite scattering field are analyzed. Finally, artificial neural networks and wavelet analysis are introduced into the study of the sea clutter to realize the purpose of target detection, the factors which affect the detection of the target are discussed and the solutions to these problems are given.

同时利用物理光学近似结合互异性原理计算了介质粗糙海面与其上方导体运动平板的复合散射，考虑了平板尺寸对复合散射场的影响，并对复合散射场时间序列进行了多普勒谱分析和混沌分析，最后将人工神经网络和小波分析引入到海杂波的分析当中，实现了海杂波中目标探测的功能并讨论了影响目标探测功能的因素以及解决这类问题的方法。

Zhangzhou Bay faces the east sea, and there is strong wind and rough sea with east wind. The rocks were polished into thousands of black and shinning cobbles by the tides repetitiously, were pushed onto the shore, and accumulated the impressive cobble bay.

樟州港湾面向东海，每遇东风，风大浪急，在海浪和潮汐长年累月的冲刷下，原有的棱角逐渐被打磨殆尽，形成一颗颗光滑乌亮的鹅卵石，被海浪冲上海滩，堆积成蔚为壮观的乌石砾滩。

It reminds you of a placid rivulet,meandering smoohtly through green pastures and shaded by pleasant trees,till at last it falls into the vasty sea;but the sea is so calm,so silent,so infifferent,that you are troubled suddently

它使人想起一条平静的溪流，蜿蜒畅游过绿茵的草场，浓荫遮蔽，最后注入烟波浩渺的汪洋大海；但是大海太过平静，太过沉默，太过不动声色，你会突然感到莫名的不安。

It reminds you of a placid rivulet,meandering smoohtly through green pastures and shaded by pleasant trees,till at last it falls into the vasty sea;but the sea is so calm,so silent,so infifferent,that you are

它使人想起一条平静的溪流，蜿蜒畅游过绿茵的草场，浓荫遮蔽，最后注入烟波浩渺的汪洋大海；但是大海太过平静，太过沉默，太过不动声色，你会突然感到莫名的不安。

The noise spectrum level of the sallow sea in north sea of our country has been predicted by this model.

在声呐作用距离预报或信号处理方案设计中，需对海洋环境噪声场的时空统计特性进行预报。

By the Tianjin office in project management in agricultural science and technology commission, Tianjin Fisheries Bureau Group of Experts on June 12, 2008 of the City Fisheries Research Institute, Chinese Academy of Fishery Sciences of the Yellow Sea Fisheries Research Institute to bear in agricultural science and technology cooperation projects in Tianjin,"the sea bay Production quality control of the whole technical system model "on-site inspection, the Group heard a report on the project team, view the relevant information, visited the Tianjin Co., Ltd.oyster aquaculture breeding farms purification facilities and test factory production.

受天津市农业科技项目管理办公室委托，天津市水产局组织专家组于2008年6月12日对市水产研究所、中国水产科学研究院黄海水产研究所承担的天津市农业科技合作项目《海水贝类生产全程质量控制技术体系示范》进行了现场验收，专家组听取了课题组的项目汇报，查看了相关资料，考察了天津神堂水产育苗养殖有限公司牡蛎工厂化净化设施和试生产情况。

Wager Bay, Northwest Territories, Canada, 1996 Photograph by Flip Nicklin 加拿大西北省威哲湾国家公园摄影:菲力普尼克林 Eighteenth-century European scientists named Ursus maritimus, meaning 'sea bear,' and that they truly are, spending most of their lives on sea ice.

" "18世纪时欧洲科学家将北极熊的学名命为Ursus maritimus，意思就是'海熊'，而北极熊确实是在海洋的冰上度过了大部分的时光。

In order to study function and molecular polymorphism of classⅡB gene in fish, we have isolated cDNAs encoding classⅡB from spleen cDNA library of red sea bream by using EST sequencing, and examined genomic organization, molecular polymorphism and expression of red sea bream classⅡB gene.

在所测序的11个不同的阳性克隆中，有4个不同的cDNA序列被鉴定出。另外，利用rsbMHC2b3'UTRN和rsbMHC2b3'UTRC为引物，扩增同一真鲷个体的3'UTR，有12个阳性克隆被测序，测序结果中有2个不同的序列被鉴定出，表明MHCⅡB基因至少存在两种不同的位点。

By means of essencial amino acid index and animal growth experiments, using the amino acid composition of the muscle in black sea bream juvenile as standard EAA requirement model for fish feed, The effects of nine different formulae of feed protein sources were compared. The amino acid balance and the nutritional value of the protein sources in feed for the juvenile of black sea bream were studied. Two formulae of protein sources were selected to be most effective, It suggests EAAI be an effective and simple assessment standard in studies on valuation of amino acid balance in protein sources of fish feed.

以黑鲷劫鱼肌肉的氨基酸组成作为幼鱼饲料中必需氨基酸需要量的标准模式，通过必须氨基酸指数和生物饲养试验结果相结合，对黑鲷幼鱼的9种不同蛋白源配比的饲料进行了比较研究，对黑鲷幼鱼配合饲料中氨基酸平衡和蛋白质营养价值进行了评估，筛选出2个高效饲科蛋白源配方；表明EAAI是鱼用饲料蛋白质营养价值评估和氨基酸平衡研究的一种简便有效的评价指标。

A former New Zealand navy diver left adrift at sea for three days survived by eating crayfish and sea slugs after he becam..

一位新西兰人几天前与朋友们一起在一个小岛附近海域进行潜水游戏时不幸失踪。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷