波系

D seismic and logging data of the first mining area in the Xinyi coal mine are dealt with impedance inversion to predict aquosity and watertightness of the top Ordovician limestone and the possible water-rich areas in the aquifer are determined by the impedance values.

本文根据新驿煤矿首采区的三维地震和测井资料，利用波阻抗反演技术预测该区奥陶系灰岩顶部的含隔水性，并依据波阻抗值的大小圈定含水层中的可能富水区。

On the basis of multi-solid cavity filter's bandpass charaters analysing, constructed filter's evaluation function.

针对多固体腔窄带滤光片，根据其通带的矩形度与纹波特性提出了膜系设计的评价函数。

Bowdoin College students can delve into "The Horror Film in Context" in the school's English Department.

波杜瓦学院的学生可以钻研一下该校英文系的课程"语境下的恐怖电影"。

The sons of the Achaeans shared it duly among themselves, and chose lovely Chryseis as the meed of Agamemnon; but Chryses, priest of Apollo, came to the ships of the Achaeans to free his daughter, and brought with him a great ransom: moreover he bore in his hand the sceptre of Apollo, wreathed with a suppliant's wreath, and he besought the Achaeans, but most of all the two sons of Atreus who were their chiefs.

阿开亚人的儿子们将战礼逐份发配，把美貌的克鲁塞伊丝给了阿特柔斯之子。此后，克鲁塞斯，远射手阿波罗的祭司，来到身披铜甲的阿开亚人的快船边，打算赎回女儿，带着难以数计的财礼，手握黄金节杖，杖上系着远射手阿波罗的条带，恳求所有的阿开亚人，首先是阿特柔斯的两个儿子，军队的统帅。

The sea keeping ability has been analyzed on turret single buoy mooring floating production storage unit by short crested wave theory and spectral analysis method for 100 years return period extreme environment in the South China Sea.

用短峰波理论并采用谱分析法，对在南海100年重现期极端环境条件下转塔式单点系泊的浮式生产储油装置的耐波性进行了分析。

Based on the electromagnetic theory, analyze the character of electromagnetic force using two linear electromagnetic stirrers which were designed by our department. Investigate the rule of electromagnetic force and how the different parameter of casting and stirring influnce the solidification structure.

本文采用理论分析与实验研究相结合的方法，在实验室条件下，采用本系最新自行研制的行波磁场搅拌器对在行波磁场电磁搅拌作用下钢液内的电磁力特性、各种不同浇铸工艺参数以及搅拌参数对铸坯凝固组织的作用规律，进行了深入的研究。

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。

A seismic response model of long span concrete filled steel tube arch bridge is set up.

针对跨径为（76＋360＋76）m的某大跨度钢管混凝土系杆拱桥的特点，详细介绍了其分析模型的建立方法，动力特性特点及其在地震动作用下的响应，并深入讨论了不同行波波速对该拱桥地震反应性能的影响。

This paper proposes a switched-mode boost DC-DC converter, which doesn't need not only a saw-tooth wave generator but also an error amplifier. By using a comparator and a fixed duty-cycle oscillator, the proposed controller will offer a high DC voltage of 15V to drive the LED backlight driver for Liquid Crystal Display.

中文摘要本论文提出ㄧ种不需锯齿波产生器和误差放大器的架构，其系利用比较器和输出固定责任比的振荡器来替代锯齿波讯号，藉此控制开关的动作，完成升压式直流电压控制晶片，以提供15伏特直流偏压给小尺寸液晶显示器(Liquid Crystal Display， LCD)。

The conventional onesided travelling-wave ultrasonic motor needs bearing to support and oil to lubricate, does provide sufficiently high torque and power due to limited contact area between the stator and the rotor, consequently its application is limited.

针对传统的行波超声电机定转子接触面小、输出力矩小，需要轴承定位，存在润滑问题，设计了一种新型双锥面齿驱动的自支撑轴系行波超声电机。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。