查询词典 waterline

Antirust in hull, the ship waterline, marine structural steel and other construction steel structure of the anti-corrosion.

适用于船底防锈、船舶水线、海上钢铁结构建筑及其它钢铁结构的防腐蚀。

This paper based on Bayes posterior probability formula, establishes a dynamic model for the identification of fractures by using five performance paramete1 such as water breakthrough period, waterline movement velocity, using velocity of water cut, cumulative injection production ratio, and injection pressure. It carries out an analogy between the samples to be distinguished and the known ones to confirm how to classify them.

将油水井见水周期、水线推进速度、含水上升速度、累积注采比、注水压力等5个参数作为动态变量，基于Bayse后验概率公式建立动态裂缝识别模型，将待判别的样品与已知类型的样品进行类比，以确定待判别样品的归类。

Suitable numbers of zinc anodes shall be fitted on the hull below the waterline surface, areas around the propeller, on the rudder, sea chest, bilge keel and so on.

本船在水线下的船体外表面、桨、舵、及海底阀箱及舭龙骨等处设置适当数量的锌阳极保护，使用寿命为3年。

The new vessel will be 42m long on the waterline, about 54m over deck, giving a total length including bowsprit of nearly 60m.

新帆船的吃水线长度为42米，甲板以上高度为54米，包括船首斜桅在内的总长度为60米。

In this paper, the feasibilities and approaches to detect and identify warship aimpoint are studied, such as midpoints of waterline, bridge house, and engine cabin, by use of the contour, shape specific points, thermal regions, geometry relationship etc., of warship′s long wave infrared image.

利用舰船目标长波红外图像的轮廓、形殊点、热源和几何关系等多种信息，对检测识别目标的吃水线中点，舰桥和动力舱这些要害点的可行性和方法进行了研究，初步的实验结果证实了文中的方法和算法是可行和有效的

The Barne Glacier flows down from Mount Erebus to the Ross Sea, where it forms an ice cliff grounded on the sea floor. The cliff rises about 150ft above sea level and extends far below the waterline.

巴尼冰川从埃里伯斯火山上一直流到罗斯海，形成了坐落在海床上的冰崖，冰崖高出海平面150英尺，底部远在水线之下。

When the gas flux is constant, the ratio of reduced resistance is improved with the increase of the water stream velocity. However, the relationship between the gas flux and the ratio of reduced resistance is more complex. When the water stream velocity is constant, if the gas flux is small in contrast, the effectiveness of reduced resistance is not obvious. But when the gas flux increased, the jetted gas will form """"archform"""" which will augment the shape resistance. In this condition, resistance could not be reduced and could even be increased, if the gas flux continues to be increased. So that there needs setting a baffle called step, which introduces the jetted gas into the turbulence boundary layer. In this case, the shape resistance may be fairly great. Besides, the waterline of model has also some effect on the ratio of reduced resistance, which acts on the size of wave. If waterline is deep, the wave could not affect the deployment of microbubble layer, so there is almost no effect on ratio of reduced resistance. However, the wave would affect distributing of microbubble layer under the model so that the gas could leak out from the two sides of model and directly affect the ratio of reduce resistance if the waterline is very small. Whether installing the dashplate or not has also the great influence on the effectiveness the ratio of reduced resistance. From the results of experiment, conclusion is that adding dashplate will greatly improve the effectiveness of reduced resistance.

当喷气量一定时，水流速度增大，减阻率提高；喷气量与减阻率之间的关系比较复杂，速度一定时，如果喷气量较小，减阻效果就比较差，但当喷气量增大的话，喷射出的气体就会形成一个&拱度&，增加了船模的形状阻力，在这种情况下最好采取断阶喷气，把气体引入到湍流边界层中，在这种情况下，船模的形状阻力比较大；船模的吃水对减阻率也有一定的影响，主要表现在波浪大小上，如果吃水较深，波浪影响不到微气泡层的分布，对减阻率不会造成太大影响，如果吃水较浅，波浪就会影响到微气泡层在船模底部的覆盖情况，可能会有部分微气泡从船模两侧泄漏，这样就直接影响到了减阻效果；是否安装压浪板，对减阻率也有较大的影响，从试验结果可以看出，在船模尾部加设了压浪板时，减阻效果明显得到改善。

Under the condition of different velocity of downstream.flux、waterline and so on, the conclusioti drawn from the experiment 'isthat the ratio of reduced resistance is relevant with the velocity of thedownstream and the jetted gas' the waterline of model and the dashplate.

通过不同来流速度、不同流量以及不同吃水等情况下的试验，结果表明：减阻率与来流速度、气体喷射速度、船模的吃水以及有无压浪板有关。

The research of this thesis is under the circumstances that the international shipping center of Shanghai builds Yangshan deep water port project, first of all, through its SWOT analytical method analyze Shanghai maritime affairs situation, maritime affairs office existing boat policy, Yangshan deep water port hydrometeorological situation, analyze the present main ship type, to explain the background of the choice the ship the small waterline, to put forward the necessity of building small water-plane area twin hull maritime affairs patrol ships. Then, it introduces the principle, characteristic of the small waterline, and has analyzed the domestic and international state of development of the SWATH ship, and conclude that it is feasible to build SWATH maritime affairs patrol ship technical, through the research and analyze of design at home and abroad,; Then it analyzed the application of the SWATH ship in maritime affairs manage both at home and abroad, put forward the preliminary scheme, and carry on research to the economic performance of technology of the scheme, through putting forward the preliminary model of plan of design to main yardstick and selecting type of host computer finally after relatively optimize, and confirm design specifications .

本文的研究是在上海国际航运中心建设核心工程洋山深水港的大前提下，首先，通过利用SWOT分析方法分析了上海海事局面临的形势，对上海海事局现有航政管理船舶现状进行分析，对洋山深水港海域的水文气象情况进行了调研，对当前主要船型进行分析，对选择小水线面船的背景加以阐述，提出建设小水线面双体海事巡逻船的必要性：接着，对小水线面船的原理、特点加以介绍，并对小水线面船国内外发展状况进行了分析，对国内设计建造小水线面双体海事巡逻船的技术可行性进行了研究分析，得出国内设计建造小水线面双体巡逻船在技术上是可行的；然后对国内外应用于海事管理等工作的小水线面船型进行分析，提出初步的方案，并对方案的技术经济性能进行研究，通过对主尺度和主机选型等进行比较优化后最终提出初步的设计方案模型，并确定设计任务书。

In this thesis, the influence of waterline integral term on the calculation results of zero-order and lst-order free wave amplitude function and wave-making resistance have been analyzed in detail. And the role of waterline integral is proved to be important.

本文还较详细地分析了水线积分项对0阶和1阶自由波幅函数及兴波阻力计算结果的影响，证实了水线积分项的重要作用。

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。