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Several methods were used to study the pulse shortening of CuBr laser and dye laser pumped by it experimently and theoretically in this paper.

本论文主要从实验及理论上运用若干方法对CuBr激光脉冲压缩及其泵浦染料激光脉冲压缩方面作了详细的分析研究，实验上均获得了接近Fourier变换极限脉冲输出。

In chapter 2, the characteristics of the additional operating force and its effect on the system are analysied theoretically and experimently.

因此，不加任何补偿方案，被动式电液力控制系统仅靠输出反馈抑制多余力不能很好地工作。

The characteristics of the dual-rod resonator have been studied theoretically and experimently.

将激光混合模理论引入模式测量中，使系统软件能够给出和评价混合模的光束参数及光束质量。

By comparing and analysing the features of the definition on beam radius and beam quality theoretically and experimently, a scientific definition about high power solid-state laser mode, i.

并在混合模系数中引入了模间相干项和相干系数，得到了模间完全相干、部分相干和完全不相干时的表达形式。

From the changing curve of the photoinduced anisotropy with the exposal, the best exposure scale 13～20 J/cm2 was found, and the reason was theoretically analyzed.

实验还测量了光致各向异性与曝光量的特性曲线，发现最佳曝光量为13～20 J/cm2；理论分析了其原因。

For concrete construction design, practical calculation formule were dedused theoretically. Light shielding effects of Fresnel reflector and heliostate were examined and the temperature of working fluid in receiver pipe was calculated.

根据具体的结构设计和理论推导，得到了为设计这类聚光集热系统实际可用的计算公式，如平面镜和菲涅耳反射镜的遮荫计算，集热管中工质温度的计算等。

ABSTRACT Color center and chromium－doped forsterite lasers were studied theoretically and experimentally in the dissertation.

本文主要对色心及掺铬镁橄榄石激光器的理论和实验进行了研究。

The construction and the principle of the two-dimensional galvanometric scanner laser scanning system are theoretically described.

对二维振镜激光扫描系统组成和原理进行了理论描述，讨论了在视距范围内采用扩束装置和振镜系统对激光束实施可靠控制的方案，并在水下光通信系统中有效地完成了对水下和空中运动目标所在区域的扫描。

The construction and the principle of the two-dimensional galvanometric scanner laser scanning system are theoretically described. The methods to effectively control the laser beam with bunch expanding devices and the galvanometric scanner system in the visible range and finish the scanning of the area of the goal underwater and in the air in the underwater optical communication system.

对二维振镜激光扫描系统组成和原理进行了理论描述，讨论了在视距范围内采用扩束装置和振镜系统对激光束实施可靠控制的方案，并在水下光通信系统中有效地完成了对水下和空中运动目标所在区域的扫描。

It is found that there are no obvious corresponding signals related to the Slichter modes claimed by Smylie (1992), Smylie et al.(1993) and Courtier et al.(2000) in the product spectral density estimates. Instead, it is found that there exist 8 common significant spectral peaks in the subtidal band in the product spectral density estimates of the SCG gravity data, which may be related to some unknown global geodynamical or geophysical effects. It is very encouraging that the central periods of three peaks of them are estimated accurately as 4.93438 ±0.00186h, 4.42734 ±0.001159h and 4.09269 ±0.00082h, respectively, and in significant accordance with the eigenperiod of the Slichter modes of the solid inner core expected theoretically by Smith (1976) with only differences of 0.4%,-1.4% and 1.0%, respectively.

初步分析结果表明，在积谱密度估计中没有Smylie(1992)，Smylie等(1993)和Courtier等(2000)发现的与内核平动振荡有关的共振信号，但存在与某些未知的全球地球物理或地球动力学效应有关的8个重要的明显公共谱峰，估计了在这些谱峰附近的重力共振参数，其中三个谱峰的中心周期与Smith(1976)理论预测的固体内核Slichter模的本征周期符合得非常好，二者之间的差异分别仅为0.4％，-1.4％和1.0％。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐