非着重的

In this paper, the propagation and focus properties for several modes describing hollow beam are analyzed, and the focus properties for hollow gaussian mode are particularly discussed. Furthermore, a new mode, high-order Bessel-Gauss mode, is put forward to describe hollow beams. The results for high order Bessel-Gauss beams propagating through lens focusing system and free space are derived by terms of Collins integral formula.

本文分析了几种描述空心光束数学模型的传输特性和聚焦特性，着重讨论了描述非中空光束的数学模型的聚焦特性；同时提出了一种描述完全中空的空心光束的新模型――高阶贝赛耳高斯模型，并且运用Collins积分公式，分析了这种新模型的空心光束的传输特性和聚焦特性。

It summarizes the current advancements in the aboveOmentioned field in terms of eight aspects :①relations between L2 speech perception and production ,②L2 phonological studies ,③L2 speech segmental studies ,④L2 speech acquisition models ,⑤L2 speech suprasegmental studies ,⑥L1 transfer in L2phonological acquisition ,⑦nonO linguistic factors in L2 phonological acquisition ,and ⑧L2 speech instruction.

本文主要探讨了国外第二语言语音习得研究近年来的进展，着重涉及以下8 个方面：①二语口头话语感知与表达的关系、②二语口头话语的音系学研究、③二语口头话语的语段理论研究、④二语音系理论模型的构建、⑤二语口头话语的超音段研究、⑥二语音系习得中的母语迁移、⑦非语言因素对二语音系习得的影响、⑧二语语音教学研究。

For the measuring algorithm of the electrical parameters, it was emphasized to discuss the measuring computation of reactive power in three-phase circuits, and the author theoretically deducted its measuring errors in both nonsinusoidal waveform circuits and three-phase unbalanced load systems in this paper.

对于电参量的测量计算，本文着重论述了三相电路无功功率的测量计算，并就三相电路非正弦不对称的情况下无功功率的测量计算进行了理论推导。

The first chapter introduces the equilibrium and disequilibrium theory which is the principal economic theory in west, analyses Disequilibram theory's unactuality and its existact value in theory, establishes the basis view which uses anterwalras'disequilibrium Theory as researching object, especially introduces li yiling's two Disequilibrum Economy Theories.

第一章介绍了西方主要的均衡与非均衡理论，分析了均衡理论的非现实性及其存在的理论价值，确立了将反瓦尔拉斯非均衡理论做为研究对象的基本视角，并依据中国当前的经济现实，着重介绍了厉以宁的两类经济非均衡理论。

Since the PSE is parabolized, the problem can be solved by the marching procedure which uses different method in the streamwise direction and spectral collocation method in the normalwise direction.

研究了不同情况下的扰动演化过程，特别是扰动增长因子的变化，这是稳定性研究的关键问题，还着重研究了非平行性和压力梯度对边界层稳定性的作用。

The results suggest that the primary sequence has the same symmetries as their tertiary structure.

氨基酸的特性，像二级结构形成的倾向性，极性和非极性残基在蛋白质序列中的位置等都在形成蛋白质的三级结构方面起着重要的作用。

In recent years, a new gas burner of low voltage and low caloric value was successfully developed.

简要分析了国内普遍使用的非预混式气体燃烧器的技术概况，着重介绍了近几年研制成功的新型低压、低热值煤气燃烧器的结构特征、技术特点及应用效果。

In chapter 7, quality loss cost is first used in the model of simultaneous design of tolerance, and economically attainable accuracy of position is first considered as constraint condition. It is first proven that the function of simultaneous design of tolerance is non-convex program; discrete and continuos Simulated Annealing are introduced; the optimum software to solve this model is given.

第七章首次将质量损失成本用于公差并行设计的优化数学模型中，并首次考虑位置精度的经济加工精度范围作为约束条件；论证了公差并行设计优化模型的非凸规划问题；着重介绍了离散型和连续型的模拟退火算法SA；研制了公差并行设计的优化软件。

This paper reviews the study of iron sulfide mineral s and presents the trend of further research in this field.

缺氧环境下对含氯有机化合物的非生物转化是自然界自我调控的过程之一，而广泛存在于这一环境中的铁硫化物矿物在这一过程中起着重要的作用。

Some valuable conclusions were drawn and shown as following: Three models were brought forward, i.e. 6DOF rigid-connected model, 8DOF rigid-jointed model and 12DOF non-rigid connected model. The basic dynamic properties of the system, the relative motion between parafoil and payload, and some geometric parameters'effects on the system dynamics were analyzed and summarized.

分别建立六自由度刚性连接模型、八自由度刚性铰接模型和十二自由度非刚性连接模型，着重分析了系统的基本运动特性、回收物-伞体间的相对运动特性，以及主要设计参数对系统性能的影响；并将不同复杂程度的模型进行对比，分析了各种模型的特点和适用范围。

He knows that he's one of the mostdominant players in the NBA right now.

我知道他现在是联盟里最有统治力的球员之一了。

Using analysis method of BCG , the dissertation analyzed the management of voluntary service organizations .

利用BCG分析方法对我国的志愿服务组织管理进行了分析。