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The dependence of the harmonic generation on the parameters of laser and plasma are systematically analyzed. Some discussion on the pathway to improve the ratio of the harmonic power to the pump laser is given.

首次研究了超强激光在电子-正电子等离子体中激发的相对论相干谐波辐射，发现其特性强烈依赖于准静态的外加磁场或自生磁场。

Species and distribution of hazelnut at home and abroad, and the research status quo on breeding and genetic diversity of hazelnut were systematically summarized in this paper.

本文中，较为系统地介绍了国内外榛子的种类及分布；良种选育及遗传多样性的研究，针对榛子遗传改良存在的问题提出相应的对策。

So, the open-loop system of two-phase HB stepping motor has been studied systematically in this paper.

因此本文针对二相混合式步进电动机的开环系统进行了深入细致的研究。

In this paper, based on the research home and abroad, the benefits of ecology, economy, society and their integration of contour hedgerow system of nitrogen-fixing plants in Ningnan County of Sichuan have been analyzed and assessed systematically with analytical hierarchy process.

本文在国内外已有研究基础上，采用层次分析法对四川省宁南县马桑坪的等高固氮植物篱种植模式的生态效益、经济效益、社会效益及综合效益进行了较为系统的分析和评价。

Hydrogenated amorphous silicon nitride films have been deposited by helicon wave plasma enhanced chemical vapor deposition, the effect of SiH4/N2 rate on the properties of the samples is systematically studied, and the critical experiment condition is obtained under which a-SiNx:H films with different compositions are deposited.

本工作采用螺旋波等离子体化学气相沉积方法制备了氢化非晶氮化硅薄膜，系统地研究了不同反应气体配比对薄膜特性的影响，得到了沉积不同组分a-SiN_x：H的典型实验条件。

However, most of t hem wer e limited in clinical practices, not intensively and systematically.

从中医学和西医学两个方面，对酒精性肝病的研究现状进行了评述。

PG was used to produce different types of binding materials as β-hemihydrate gypsum,Ⅱanhydrate gypsum and α-hemihydrate gypsum and the relevant factors were also studied systematically including the pretreatment methods of raw material, preparation process, the material properties, the mixing proportions, curing conditions and the hydration mechanism of different systems.

对磷石膏制备胶结材进行了深入、系统研究，包括β-半水石膏、Ⅱ-无水石膏的原料预处理方式、制备工艺、性能及其复合胶结材配比、养护、性能与水化硬化机理，α-半水石膏的制备工艺及其性能影响因素，二水磷石膏改性胶结材的配比、养护、性能及其改性机理。

Systematically researches on the hemocyanin based on the molecular level may provide new methods for the controlling of Schistosoma.

目前，有关钉螺血蓝蛋白的研究还未见报道，从分子层面上研究钉螺血兰蛋白，可望为血吸虫防治新技术的研发提供实验依据和理论指导。

The experiment gone in a hermetical batch reactor,in this paper cellulose was hydrolyzed with extremely low acid as the catalyst in the high-temperature and high-pressure condition. Factors influencing the sugar yield and cellulose conversion ratio by hydrolysis including reaction time and the concentraction of the acid were studied systematically.

本实验是在密封性良好的间歇反应器中，以生物质的主要成分纤维素为原料，在高温高压条件下进行了极低浓度硫酸为催化剂的均相水解反应研究，系统研究了停留时间、酸浓度对水解糖产率和纤维素转化率的影响规律。

In this dissertation, I comprehensively and systematically study the two kinds of paradigm of history which were invented by Herodotus and...

本文旨在对希罗多德和修昔底德的两种史学范型进行全面、系统、深入地研究。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。