相应点

This paper main discusses several problem face with develop oasis ecotypic agriculture in xinjiang,and corresponding countermeasure and propose solves this question.

本文主要论述了新疆发展绿洲生态农业面临的几点问题，以及解决这些问题的相应对策与建议。

A general laser scanning altimetry equation is developed that describes an ideal system, followed by developing an error model for the laser scanner, and the INS and GPS units. The result is a modified laser equation that contains all errors introduced. The error model is evaluated by analyzing the difference between errorless equation and laser equation with errors.

本文从机载激光扫描测高对地定位的几何模型出发，详细推导了各项误差对机载激光扫描测高对地定位结果的影响关系式；详细分析了不同误差对激光脚点坐标的影响规律，并给出了相应的数值结果和量化指标。

This thesis investigates the profile extraction and shape optimization on the result of topology optimization of planar compliant mechanisms. The main context includes the following work:(1) summarizing and analyzing the recent research status, some harvest and unsolved problems;(2) analyzing the conceptual design of planar path-generating compliant mechanisms and its mathematical model and tools;(3) Modifying the method of density contour as the method of profile extraction, and developing a method to optimize the density function in the profile extraction according to the requirement of the design of compliant mechanism;(4) developing a method to abstract the compliant mechanism into a form of links and joints by using the principle of connectivity on topology;(5) developing a method of shape optimization of planar path-generating compliant mechanisms, by representing the profile of the abstracted compliant mechanism as simple curves such as straight lines and arcs, establishing the models of the size optimization of the parameters of these curves, so that the compliant mechanism has a machinable shape;(6) At last, proving the feasibleness and effectiveness of the design method by making simulation design and validating it in FEA software.

主要工作包括：(1)分析了柔顺机构拓扑优化和形状优化的研究现状，分析了目前柔顺机构的研究重点、主要成果和尚未解决的问题；(2)分析了基于SIMP的柔顺机构概念设计方法及其相关工具和模型；(3)针对柔顺机构轮廓提取的特殊要求，提出了密度等值线法的改进方案，对密度函数插值点密度值进行优化，提出优化模型和选择优化算法；(4)根据轨迹输出平面全柔顺机构自身的形状特点，提出了轨迹输出平面全柔顺机构的抽象方法，即应用拓扑学上的连通性原理将柔顺机构抽象成杆件和结点形式，并对相应的数学原理进行了证明；(5)提出了平面全柔顺机构的形状还原和尺寸优化方法，对抽象的柔顺机构进行还原，将其轮廓还原成简单曲线的连接，从而建立尺寸优化模型，对机构进行尺寸优化设计，在得到可加工的机构轮廓的同时又能对关键部位进行特别处理；(6)进行了柔顺机构的数值仿真设计，并将所得设计结果导入商用有限元软件中进行仿真实验，证明了设计方法的可行性和有效性。

So we necessarily aim at Qingdao city Middle and small logistics enterprise and carry on researching and studying, making corresponding marketing policy. Homogonously, in allusion to other region Middle and small logistics enterprise, this have some consulting meaning.

因此，我们有必要对青岛市的中小物流企业进行调查与研究，制定出相应的营销策略，以点带面，对全国其它地区的中小物流企业也具有一定的借鉴意义。

There were some specific examinations according to conditions of different patients, including multipoint corneal thickness, time-related keratometry, glare, contrast sensitivity, function of muscular apparatus, VEP, and so on.

除视力、屈光度、主视眼、角膜厚度、角膜地形图、像差检查等常规术前检查外，还要依据患者情况进行相应的特殊检查，包括角膜多点厚度、角膜曲率时间变化、眩光仪、对比敏感度、眼肌功能、VEP五项等检查。

For simplicity let us suppose that firm 1 has no monopsonistic power over any factors whose amount it can vary, so that supply curves of such factors are horizontal at prices of P'a, P'b,…, the prices that implicitly correspond to d'.

2为简化起见，假设厂商1对于生产要素（指它可以改变其使用量的任何生产要素）没有买方垄断权力，这样，这些要素的供给曲线，就是在d'点相应的价格P'a， P'b，…上的水平线。

Studies the high precision estimation methods of echo frequency, proposes a simplified TLS-ESPRIT method for frequency estimation based on uniform sampling data. For moving platform, such as torpedo, proposes a time fusion algorithm for target status estimation based on multicycle data of single sensor.

c。深入研究了回波信号的高精度频率估计技术，提出了一种基于均匀采样数据的TLS-ESPRIT频率估计算法；针对运动平台，提出了一种单传感器多测量周期目标状态估计的时间融合算法；以炸点预测为例构造了相应的状态模型及算法，计算机仿真验证了融合算法的有效性。

After the animals were killed, retrogradely labeled surviving RGCs were counted in the flat-mounted retinas and the mean RGC density was estimated.

于相应存活时间点处死动物，取出各组大鼠左侧视网膜平铺后计数存活RGC并得出RGC的平均密度。

To " home products wall " develop pattern, cheng Liang has not thought very clearly now, current pattern is the brand enumerate enterprise of each big home products is on home page, the autograph having reward that the person that browse can be invited to participate in real name to make after click supports, be guided " stagnant " the corresponding brand of forum discusses a subprovincial administrative region in.

对于&国货墙&的发展模式，程亮现在还没想得很明白，目前的模式是将各大国货企业的商标罗列在首页上，浏览者在点击后会被邀请参与实名制的有奖签名支持，并被导入&不景气&论坛的相应品牌讨论专区中。

The article introduces some needed resolving problems. It brings forward principium of control, How can drive the servo signal and X and Z to the coordination of movements; How to change the feed rate; design of system structure, confirmation for input and output point, I / O address allocation;and also the project for speedup/down control during the screwthread processing. Method of programming design and manual operation trapeziform figure in system of numerical control lathe Corresponding project to problems is provided synchronously.

介绍可编程控制器应用于车床数控系统需要解决的问题，如何产生驱动伺服机构的信号及X、Z向的动作的协调；如何改变进给速度等；提出PLC作为数控机床主控制器的控制原理；系统结构设计；输入/输出点数确定及输入/输出点的地址分配；螺纹加工中升、降速的解决方案；程序设计及具体操作梯形图设计的方法，并给出相应的解决方案。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。