降等

In the experiment the preprocessings, such as image filtering and Harris operator corner detector, etc., were used to get feature points quickly and realize the mapping transformation of camera parameters. The error estimate function was established to compare the proposed method with Tsai calibration algorithm.

实验过程中，利用图像降噪、改进的Harris算子角点提取等预处理过程快速提取特征点，实现摄像机参数标定的映射变换；建立了误差评价函数评价本文方法与Tsai标定算法。

Introduced the structure arrangent,refitting vehicle,decreasing noise and ventilation,heat emittion,etc of 90kW microbus for low-noise mobile electric power station and supplied some technical basis for this type electric power station s research and production in future.

介绍了90kW面包车型低噪声移动电站的结构布置、车辆改装、降噪及通风散热等，为今后该类型电站的研制和生产提供了一定的技术依据。

The Lower/Upper Cretaceous boundary in Songliao Basin is,therefore,between the Quantou and Denglouku formations,instead of between the Quantou and Qingshankou formations.2.The dark mudstones and shales in the Member 1 of Qingshankou Formation are of high organic carbon and low diasteranes contents.Organic geochemical characters are illustrated by biomarkers of 28,30-bisnorhopane and gammacerane,and positive excursion of kerogen isotopes.It is suggested that the dark mudstones and shales in the Member 1 of Qingshankou Formation are the products of lake anoxic period.It corresponds to the oceanic anoxic event at Cenomanian-Turonian boundary in Cretaceous.3.Based on the study of biostratigraphy,chronostratigraphy,magnetostratigraphy and event stratigraphy,a correlation of the lacustrine sequence to marine standard has been proposed,i.e.,the Quantou Formation corresponds to Cenomanian stage,Qingshankou Formation correlates to Later Cenomanian-Early Turonian,Yaojia Formation to Later Turonian-Coniacian,Nenjiang Formation to Santonian-Campanian.Sifangtai and Minshui Formations to Maastrichtian. 4.Analysis of lithology,lithofacies and microfossils of Cretaceous in Songliao Basin, shows that shore and shallow lake facies yield the most abundant microfossil groups,and the predelta and deltaic distributary plain facies rich in fossils as well.In the shore and shallow lake areas during the high level periods(such as Qingshankou and Nenjiang sedimentary periods),the lacustrine biota are of high diversity and high abundance.

因此，松辽盆地上、下白垩统的界线应在泉头组的底界，即泉头组与登娄库组之间，而不是泉头组的顶界。2、青山口组一段黑色泥岩、页岩具有有机碳含量高、重排甾烷含量低，生物标志物出现28，30—双降藿烷和伽马蜡烷，干酷根碳同位素具有正向偏移等有机地球化学特征，表征为青山口组一段黑色页岩、油页岩是古湖泊缺氧事件的产物，它对应于白垩纪古海洋Cenomanian—Turonian期界线附近缺氧事件，二者具同步性。3、通过生物地层学、年代地层学、磁性地层学和事件地层学研究，认为泉头阶大体相当于Cenomanian阶，青山口阶相当于晚Cenomanian—早Turonian阶，姚家阶对应于晚Turonian—Coniacian阶，嫩江阶对应于Santonian—Campanian阶，四方台阶和明水阶相当于Maastrichtian阶。4、通过对松辽盆地上白垩统的岩性、岩相及微体化石分析，认为滨浅湖相是微体生物群最为发育的相带，其次为三角洲前缘相和三角洲分流平原相。

When using the threshold method to remove the noise, the useful information in the detail abundant areas would be thrown off, and the edge appears mistiness.

摘 要：在图像降噪中，小波阈值法可以有效的降低图像的噪声，但是图像中存在平坦区域和细节丰富的区域，对细节丰富的区域用阈值方法消噪时，会去除掉有用的信息，出现边缘模糊等现象。

The utility model is characterized in that a commonly used escalator which is formed by a plurality of active rundles and handrails is assembled on a vehicle, and the drive force of the escalator is suppplied by the vehicle through the mechanical transmission system; a mechanical transmission system is added in the vehicle and the mechanical transmission system mainly transmit the dynamic energy to the escalator carried on the vehicle, the rundles and the handrails can move in positive or opposite direction synchronously; a hydraulic power transmission system is added in the vehicle, and then the hydraulic power transmission system mainly transmit the dynamic energy to the escalator carried on the vehicle as well as related hydraulic power transmission devices or facilities; the whole vehicle-carrying escalator is supported by the supporting facilities, or the whole vehicle-carrying escalator moves upwards and downwards taking the axle direction which movably connects the lower end and the tail end of the vehicle as center.

其主要技术特征是：将主要由若干节活动梯级、扶手带等组成的现代所通常使用的自动扶梯安装在机动车上，并使自动扶梯的主动力部分由机动车通过机械传动系统供给；在机动车上增加机械传动系统，该机械传动系统主要向所载的自动扶梯传递动能，并使自动扶梯的梯级和扶手带能够同步正向或反向运动；在机动车上增加液压传动系统，该液压传动系统主要向车载自动扶梯的相关液压传动装置或设施传递动能，并在机动车的液压传动作用下，使支撑设施支撑整体车载自动扶梯，或使车载的自动扶梯以下端与机动车末端活动连接的轴向为中心整体升、降运动。

Effects of nitrogen-degrading microbes on biological characteristics of the growth of water hyacinth, the contents of nitrogen and phosphorus in water, and the dynamic change of microorganism in water were analysed by the elimination of nitrite, organic nitrogen and phosphor in water by nitrobacteria and denitrobacteria.

利用硝化细菌与反硝化细菌对水体中亚硝酸盐、有机氮、磷等营养物质的消除作用来分析降氮灵菌剂对水葫芦生长的生物学特性、水体中氮磷含量变化以及水体中微生物消长动态的影响。

Gamma-aminobutyric acid, a four-carbon nonprotein amino acid, serves as a major inhibitory neurotransmitter in mammalian nervous systems. GABA has several physiological functions such as hypotensive activity, treatment of epilepsy, tranquilizing and allaying excitement, enhancing memory, controlling asthma, regulating hormone secretion, promoting reproduction and activating liver and kidney function.

氨基丁酸(γ-aminobutyric acid，简称为GABA)是一种天然存在的非蛋白质氨基酸，为哺乳动物中枢神经系统中重要的抑制性神经递质，具有降血压、治疗癫痫、镇静安神、增强记忆、控制哮喘、调节激素分泌、促进生殖、活化肝肾等多种生理功能，其制备和应用广受人们的关注与重视。

The algorithm takes into account the relationship between noise and underlying geometric information,such as normal and curvature.

为了更好地去除噪声，并保持模型的突出特征，提出了一种鲁棒的点模型多边滤波器降噪算法，该算法充分考虑了模型表面的法向量、曲率等内蕴几何量和噪声之间的关系。

The influences of relevant parameters such as mass velocity, heat flux, pressure, inlet subcooling, and compressible volume on the threshold, period and amplitude of oscillation were studied.

分别研究了压力降脉动和密度波脉动的特征、脉动机理及其有关参数，如质量流速、系统压力、过冷度、可压缩容积、热负荷等参数对脉动界限值、周期和振幅的影响。

The numerical results of river channel planform change, longitudinal bed profile, channel cross section, water surface profile and channel sediment transport are analyzed and discussed.

根据模拟得到的河道平面形态、横断面形态、河床纵剖面，沿程水面线及沿程输沙率的变化，分析了河床初始比降、入口含沙量、流量和河岸抗冲性等各种因素对河型转化的影响。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失