查询词典 target

In order to locate the point target found timely and satisfy the need to obtain information and respond quickly, this paper proposes an algorithm for the latitude and longitude of point targets so that given the known parameters, the latitude and longitude of a point target can be calculated on the SAR image at the earliest possible time. This paper also offers parametric estimation of and experimental research on the precision of the algorithm.

为了及时对发现的点目标进行定位，适用于未来战争战场信息获取和快速反应的要求，本文针对SAR在正侧视和小斜视情况下的成像算法提出了机载SAR成像场景中的点目标经纬度的计算方法，使得我们能第一时间在SAR图像上根据所知参数计算出所需点目标的经纬度，并就该方法的精确性进行参数估计和试验研究，验证了其有效性。

The motion of deep space probe is usually divided into three stages: parking orbit near Earth, transfer orbit toward the target body and the orbit around the target The Parking orbit, which is a kind of orbit of earth satellites, is not discussed in this thesis.

深空探测器的运动通常分为三个阶段：近地停泊轨道，飞向目标天体的过渡轨道和环目标天体的运行轨道，相当于目标天体的卫星。

Because of the target's motion, the solutions to path planning for space robot become complex, it is rather difficult to find a close loop control method to guarantee surely capturing a moving target.

该方法是一种开环控制方法，但不产生累计误差，因此能保证系统的误差要求。

Pearl S.Buck's translation of Shui Hu Chuan adopts the foreignizing or defamiliarizing method to keep the foreign flavor so that the target readers can keep having new findings and that the target text can increase its readers' aesthetic happiness and change the familiar in their perce...

赛珍珠的《水浒传》英译本采用了能够保留异国情调的异化或"陌生化"翻译手段，从而使译入语读者不断有新的发现；或者说译本通过延长审美时间和增加感觉难度而增强了读者的审美快感，并最终使其在观察世界的原初感受中化习见为新奇。

First,the target area is confirmed by using target matching method and the number of pels of this area is estimated.

对于相邻的两帧目标图像，如果成像效果没有大的变化，则识别出的目标边界也应该基本一致。

Here in the enormous target chamber, the 192 laser beams enter the blue, 33-foot-in-diameter vacuum chamber (the blue hemisphere in the top photo connected to the metallic arms) where they will collide with a target roughly the size of a peppercorn.

在庞大的靶室里，192束激光束进入直径是33英尺的蓝色真空室，在那里跟一个胡椒瓶大小的目标物相撞。

Halo effect: the perceiver's general impression of a target influences his perception of the target on specific dimensions.

光圈效应：评价者对目标的一贯印象影响了其在特定情况下对目标的感觉。

The most parts of thesis as follows:1. Five symmetrical intra-molecular charge transfer oligomeric phenylene vinylene light emitting materials were designed and synthesized using oligomeric phenylene vinylene as a framework.2. The structures of target molecule were characterized by ~1HNMR,~(13)CNMR, IR, MS and element analysis.3. In order to study the influence of the location and numbers of electron-donor and electron-acceptor on their photoelectric performance by changing length of OPV chain, the UV spectra and fluorescence spectra of target compounds has been compared. We have researched into main factors effecting on material emitting red-shift; organic electroluminescence device was prepared using the compound P4. The capability of eletroluminescence was researched.4. The photoelectric properties of P4 was explained by quantum chemical calculation (the Gaussian 98 quantum chemistry program). It is greatly contributed know the whole process of charge transfer to guide the design of red emitters.

本文研究的内容主要包括以下部分：(1)设计并合成5个对称的以齐聚苯乙烯类为骨架的分子内电荷转移型齐聚苯乙烯类发光材料；(2)通过IR，MS，~1H-NMR，~(13)C-NMR和元素分析对所合成的目标化合物进行表征；(3)通过对目标化合物的紫外光谱和荧光光谱比较分析，研究改变OPV的长度，电子给体和电子受体的位置及数量对其光电性能的影响，探讨材料发射红移的主要因素；选取性能良好的目标化合物P4制备成OELD器件，对其电致发光性能进行研究；(4)运用Gaussian98量子化学程序包，采用量子化学方法对目标化合物P4的光电性能从理论加以解释，进一步认识荷移跃迁的整个过程，为红光材料的设计加以指导。

Multi-step target is important to measurement of equation of state under high pressure and is the important target used in measurement of stability and planarity of shockwave.

多台阶靶是冲击波稳定性、平面性实验的重要实验用靶。

On this base, eigen-polarization has been obtained and been used in describing the target polarization scattering characteristics. Polarization features insensible to target's posture have been extracted in accordance with the wideband dynamic distribution information of eigen-polarization in polarization state plane.

在散射矩阵对称性修正的基础上，利用本征极化理论求解了目标的本征极化，并利用它来作为目标极化散射特性的描述，根据它随观测频率在极化状态平面上的动态分布信息，提取了对目标姿态不敏感的极化特征。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。