查询词典 high-pressure

The research work presented in this dissertation focused on developing the scheme and techniques of OPCPA. This dissertation gives the results of the theoretical and experimental investigation on OPCPA scheme. The validation of OPCPA at high energy level was demonstrated successfully. And some important results were achieved. Several key techniques related to developing table-top ultra-intense and ultra-short OPCPA laser system were put forward, for example, the generation of femtosecond seeding pulses, the precisely temporal synchronization of the pump and signal pulses, the pulse stretching and recompression, the OPCPA process with high energy conversion efficiency and etc. Based on the integration of these key techniques, a 1.46-TW/153-fs OPCPA table-top ultra-intense and ultra-high laser system has been developed, which, to the best of our knowledge, has generated laser pulses with the shortest pulse duration and the highest peak power among the joule level OPCPA systems in the world.

本学位论文工作主要是瞄准 OPCPA 这一国际上提出不久并处于初级阶段的新概念，重点开展了 OPCPA 新原理的理论模拟、实验验证，以及基于 OPCPA 新原理的小型化超强超短激光系统的研究与发展，创造性地解决关键科学技术问题，建立并发展相关关键科学技术，如超短脉冲种子源的产生、小型化强激光泵浦源的研制及其脉冲的整形、信号光与泵浦光的精确同步、高效率光学参量放大及高保真脉冲展宽与压缩等关键技术，并在单元技术的总体集成方面取得了重大创新性进展与突破性研究成果，获得了国际上高量级泵浦条件下 OPCPA 激光研究中峰值输出功率最高且脉冲宽度最短的总体领先结果。

The coating on steel castings in EPS-V process should be not only of high strength and high refractoriness, but also of high permeability.

提出一种简单可靠的实型负压铸钢件涂料常温和高湿透气率测试方法，通过尺寸修正和温度修正，计算出负压实型涂料的透气率，并以此为手段，研制出一种高透气率的实型负压铸钢件涂料

Less than one quarter of these high-risk deliveries occurred in high-level, high-volume facilities, yet 92% of very-low-birth-weight deliveries occurred in urban areas with more than 100 such deliveries, the researcher reported. This suggests that it would be geographically feasible to regionalize the vast majority of these deliveries in California.

不到四分之一的这些高风险婴儿是出生在高水平，大量病人的医院中，然而有92%极低出生体重婴儿出生在超过100个的市区，研究者报告，这说明在加利福尼亚州在地理学上更易于按地区找到绝大多数这些极低出生重婴儿。

Less than one quarter of these high-risk delieries occurred in high-leel, high-olume facilities, yet 92% of ery-low-birth-weight delieries occurred in urban areas with more than 100 such delieries, the researcher reported. This suggests that it would be geographically feasible to regionalize the ast majority of these delieries in California.

不到四分之一的这些高风险婴儿是出生在高水平，大量病人的医院中，然而有92%极低出生体重婴儿出生在超过100个的市区，研究者报告，这说明在加利福尼亚州在地理学上更易于按地区找到绝大多数这些极低出生重婴儿。

Zone-D is composed of relict late Pleistocene delta sand with high contents of oxidized tests, high abundance and percentage of foraminifera and ostracoda and high percentage of carbonate.

晚更新世末期三角洲粒径较粗，有孔虫和介形类的氧化壳含量较高，有孔虫和介形类的丰度和含量也较高，CaCO3的含量较高，与现代三角洲形成明显的对照。

Compares with the common enterprise, the high new technology enterprise has the high investment, the noble character danger, the high rentability as well as the enterprise information transparency low status characteristic.

帮忙翻译关于风险投资的句子！与一般企业相比，高新科技企业具有高投入、高风险性、高收益性以及企业信息透明度低等特征。

By the research of 'reselection of high-yield clones of Pinus massoniana', 58 fast-growth and high-yield clones were selected. Their genetic gains were 51.29%(the highest was 116.82%), and could be used to build high-yield seed orchard of Pinus massoniana.

通过"马尾松高产无性系再选择研究"，筛选出58个速生、高产无性系，平均遗传增益达51.29%（最高达116.82%），可用于营建马尾松高产种子园。

One of the most important reasons is thatthe risk is too high in the operation of agricultural high-tech venture capital in our country,which is retarding the development of agricultural high-tech venture capital.

究其原因，最为重要的是因为我国农业高科技创业投资在发展过程中面临的风险太大，过高的风险限制了农业高科技创业投资的发展。

As the widely used resin matrix and composites, two kinds of epoxy matrix and its CF/epoxy composite and GF/composite have different mechanics property under different temperature. The result shows that the thermal property of the composite mainly depends on the matrix. If the matrix can resist high temperature, its composite can also have high strength under high temperature. resin matrix composite, thermal resistance, thermal deformation coefficient, severity retentivity ratio

多年来 ，人们一直致力于耐高温复合材料的研究工作，在耐高温树脂中能经受长期高温氧化的热固性树脂只有聚酰亚胺，本文主要研究三种树脂基复合材料在不同温度下的性能，即以聚酰亚胺为基体的复合材料以及两种环氧基复合材料在不同温度的性能。2 实验2 。1 材料选择研究中所用的增强材料选用英国考陶尔兹公司T30 0型碳纤维和进口UM - 40碳纤维以及南玻院S2高强玻璃纤维

Based on the cognition, a method is developed to assess the retrievability of temperature and the distribution of the global retrievability with HIRS/3 and AIRS data in Jan and Jul are firstly given by using the NCEP reanalysis data. The results show that the retrievability of temperature is low in the upper and lower atmosphere, and high between 400 hPa and 850 hPa. In geographical distribution, the retrievabilities are low in the low latitude marine regions and in some regions in Antarctica, and relatively high in mid-high latitude regions and continental regions.

基于这样的认识，本文首先利用奇异值分解方法结合经验正交分解技术，导出一种计算大气温度可反演度的方法，并利用NCEP再分析资料首次给出了全球1月和7月分别由HIRS/3和AIRS资料反演大气温度廓线时的可反演度分布，结果表明温度的可反演度在高层和低层较小，400hpa—850hpa之间较大。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。