查询词典 rectangular projection

From the angle of a beam-forming, the cross- range focusing principle of the synthetic-aperture radar based on nonsinusoidal waves is studied. The expressions of antenna pattern for both rectangular signa l and Gaussian signal are presented. Compared with the conventional narrow bandw idth SAR whose cross-rang resolution is determined by the carrier frequency, th e cross-range resolution of the nonsinusoidal SAR is affected by the signal ban dwidth.

为研究非正弦波SAR的方位向分辨力，从波束形成的角度分析了非正弦波SAR的方位向聚焦原理，导出了基于矩形脉冲和高斯脉冲的合成孔径天线阵列方向图表达式，并与常规窄带SAR进行比较，指出影响非正弦波SAR方位向分辨力的主要因素为合成孔径长度和信号带宽，而与信号载频无关。

Results The rectangular stemwith longitudinal groove,surface of leaf with fovea,odor acroma were the key identical characters of Ocimum basilicum L.

结果 九层塔的茎近方形，有纵沟纹、叶片表面有凹点，气味芳香。

The Otterhound is slightly rectangular in body; the length from point of shoulder to buttocks is slightly greater than the height at the withers.

奥达猎犬的身躯略呈矩形，从肩胛与上臂结合处到臀部的距离，略大于肩高。

The Otterhound is slightly rectangular inbody; the length from point of shoulder to buttocks is slightly greaterthan the height at the withers.

奥达猎犬的身躯略呈矩形，从肩胛与上臂结合处到臀部的距离，略大于肩高。

The Otterhound is slightly rectangular in body; the length from point of shoulder to buttocks is slightly greater than the height at the withers.

这些不是绝对的，但属于基本原则。

Absctrct: Objective This study was designed to investigate the stress distribution in the surface of tooth and peridental tissues and the initial displacements of tooth in the maxillary under two orthodental simulating force rectangular archwire with T loop and II class elastic used clinically by the 3-D finite element method so as to clarify the biomechanism of orthodontic tooth movement and component of optimal orthodontic force system.

目的：通过有限元分析法比较两种工况下上颌各牙齿的位移趋势和牙根及牙周支持组织内的应力分布规律，为临床治疗中合理选用矫治力系统以便有效的控制牙齿移动类型提供可靠的理论依据。

Then on the base of photoisomerization of azobenzene molecules,we get thelong-rang order hexagonal symmetry and rectangular symmetry microstructures in theazobenzene polymer film(2μm),induced by optical lattices.

在此基础上，根据偶氮分子的光致几何异构的特性，在偶氮苯有机聚合物薄膜(2μm)中得到了长程有序的六角对称微结构和矩形微结构。

The fiber material is cut to a predetermined length and conveyed pneumatically to a rectangular slot between upper and lower platen members.

纤维材料被切割成预定的长度并采用气动的方式输送到上和下压板间的矩形槽缝中。

At last, natural frequencies of practical pre-stressed composite space truss are tested with pulsatory method on construction site and its damping ratio is calculated, which gives another important data for engineering design. In addition, through the model experiment of pre-stressed rectangular square pyramid composite space truss, the correctness of characteristics of internal force and the feasibility of tension recovery method are proved.

最后，在工程施工现场用脉动法测试自振频率，并借助于振动衰减曲线和半功率点法计算出预应力组合网架——钢与混凝土的混合结构体系——的阻尼比，此又为工程设计提供了一理论依据；另外，通过正放四角锥预应力组合网架的模型试验，验证了结构内力分布特点的正确性以及张力松弛法的可行性。

A cross shaped sum-difference network is constituted by microstrip ramose coupler with compact structure and calculated by ADS,while the 8×8 rectangular patchs,which is optimized by HFSS on basis of the method of parameter load and so on,form the transmiting/receiving antenna.

采用新型平面微带型和差网络实现了Ku波段单脉冲天线阵列的小型化设计。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样