反回

Did the string slow down the Avocet so that it was caught by the Peregrine Falcon?

是反嘴鹬被缠住飞得慢被捉，还是游隼因反嘴鹬连住风筝才抓不紧，反嘴鹬掉回水面？

The method of springback finite-element for large deflection of plate shaping is established on springback potential energy principle that is already concluded.

通过引入有限变形回弹反耦联系统和反耦联方程的概念，由回弹势能原理建立了板成形的大挠度回弹有限元法。

The frequencies of the returned beams are compared with them to obtain the true ground speed.

将它们与反回射束作对比而获得真实的地面速度。

The main theorem of this paper is to, firstly, on the grounds of experience preliminarily estimate the parameter of the pavement nonlinear model, simulate the process with computer procedure, and check the result with the data collected in sit, then set the aim function and the superiority back-calculation method, if the function is not satisfied, it is to the method adjust the parameter and make the model impend the actuality, If the function is satisfied, it is to end the process, and record the stress, deformation, displacement and the parameter as the actual condition.

本文分析的主要原理：首先根据经验，初估路面结构层应力应变非线性参数，利用计算机程序模拟承载板试验测回弹弯沉的过程，通过现场实测的弯沉数据来检核该模拟过程的真实性，设定目标函数，选定适当的优化反算方法，当目标函数不满足时，即利用该优化反算方法调整本构模型参数，使得模型能够逐步向真实解逼近，当目标函数得到满足时，则认为此时反算得到的路面结构层的应力、应变、位移场为真实的应力、应变、位移场，所推算得到的非线性应力应变模型为真实的路面结构层应力应变模型。

First, in order to verify the correct of this retrieval month, by using the data of three-dimensional wind field, raininess field and temperature field that are output by MM5 numerical simulation, we climate the radial velocity field and echo intention field in the in-phase observation area of Dual-Doppler radar, then, on the base of the upwards retrieval theory and using the radial velocity field and echo intention field in the in-phase observation area of Dual-Doppler radar, we retrieve the atmospheric three-dimensional wind field.

首先，为检验此种反演方法的可靠性，我们使用MM5数值模式输出的三维风场、雨强场、温度场等数据，分别模拟生成两部雷达同步观测区的径向速度场和回波强度场，然后根据以上的反演理论利用模拟的双多普勒天气雷达观测到的径向速度场和回波强度场反演出大气三维风场。

Methods The split thickness skin grafts were harvested from avulsed skin by using dermatone of drum type, and the mesh flaps were back grafted for 92 cases with skin avulsion, and 147 cases were treated with back grafted of full-thickness skin grafts.

应用鼓式取皮机反取中厚皮回植治疗92例，反取全厚皮回植治疗147例，对两组病例的回植成活情况进

Methods The split thickness skin grafts were harvested from avulsed skin by using dermatone of drum type, and the mesh flaps were back grafted for 92 cases with skin avulsion, and 147 cases were treated with back grafted of full-thickness skin grafts.

应用鼓式取皮机反取中厚皮回植治疗92例，反取全厚皮回植治疗147例，对两组病例的回植成活情况进行对照研究。结果在撕脱面积不大时两组间成功率差异不明显，在撕脱皮肤面积较大时，反取中厚皮回植组成功

After a week of negotiations, the prisoners approved a deal which restored their candy ration, but in return the administration said they would have to reduce daily soap allotments by 75 percent.

在一个星期交涉以后，囚犯批准了恢复他们的糖果定量的成交，但是反回管理说他们将必须由75%减少每日肥皂分配地段。

First, the effects of magnetic RAM relaxation time and the rise-time of incident pulse signal on reflection signal are discussed, the relationship between the rise-time of incident pulse and relaxation time based on the energy of reflection signal is revealed. Then, the effects of magnetic hysteric, susceptibilities and saturation upon reflection signal are analyzed, the results reveal the reflection of RAM target and UWB signal design. In the meantime, dielectric relaxation time effect about dielectric RAM target is analyzed simply, and the effects of relaxation time and the width of incident pulse upon reflection signal are probed. Finally, a few RAM targets are measured in the chamber using the impulse radar experiment system which is developed by the team of anti-stealth impulse radar on Department of Electrical Engineering, National University of Defense Technology. The experimental results show the similarity of the rule of echos with the theory. From the compared results of different tagets, we concluded, compared with 15% wideband sinusoidal signal, the impulse signal has increased 10～12dB energy from the same loaded RAM target; this, in turn, shows the nonlinear effects of RAM to the echoes, and the potentiality of the impulse signal to RAM targets.

首先分析了磁性RAM的弛豫时间及入射脉冲信号的上升时间对反射信号的影响，从反射信号能量角度出发，给出了入射脉冲上升时间与弛豫时间的关系；接着分析了磁性RAM的磁滞特性、磁化率及磁化强度对反射信号的影响，给出了RAM目标辐射和有关UWB信号设计的一般性结论；其次，对介电RAM的弛豫时间效应作了简单的分析，探讨了介电弛豫时间及入射脉冲宽度对反射信号的影响；最后利用国防科技大学电子技术系&反隐身冲激雷达技术研究组&研制的冲激雷达实验系统，在微波暗室中对几种不同的RAM目标进行了测量，结果表明：其反射波形的基本规律与上述理论分析相一致；从各种不同目标回波的能量对比结果得出，涂覆RAM目标对冲激信号的吸收比15％带宽的正弦信号要小10～12dB，证实了RAM的非线性效应对回波的影响，也证实了冲激信号反隐身的潜力。

This is frist letter to u,i am in Harar house now,and i will go back to ADDIS tomorrow morning,my office in ADDIS,I always stay in ADDIS,sometime go out of ADDIS,like this time that i am come to Harar,and i am happy know u muslim girl friend,it is so pity!

这是第一次给你写信，我现在在哈勒尔房子了，我明天早上将会离开，反回亚的斯，亚的斯的办公室，我总是呆在亚的斯，有时候出去，像这次，我就来到了哈勒尔，我很高兴认识你，穆斯林的女朋友。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了