In this paper, the sythetie technique new advance for mon-,bi-,third long chain alkyl tertiary amine and quaternary ammoniums are summarired.
综述了单、双和三长链烷基叔胺及季铵盐的合成技术新进展。
The application of sequence stratigraphy science in the research of coal-bearing measures;the new advance and foreland theory of sequence stratigraphy;the main characteristics of coal-bearing measures studyied with sequence stratigraphy,the latest advance,application and prospects of high-resolution stratigraphic division of coal-bearing measures are discussed in the paper.
论述了层序地层学在含煤地层研究中的应用 ;层序地层学的新进展和前沿理论 ;含煤地层层序地层研究的主要特点 ;高分辨率含煤地层层序划分的最新进展、应用和展望。
Diesel-hydraulic transmissions for railcars and locomotives:new developments;
内燃液力传动动车和机车的新进展
New Development of the Science of Legal History in 2004;
2004年法律史学新进展
New Advances in the Systematic and Biogeography of Impatiens L.(Balsaminaceae);
凤仙花属系统学与生物地理学研究新进展
Research actuality and new advances of Oocyte Apoptosis in Mammals;
哺乳动物卵母细胞凋亡的研究现状及新进展
This paper collects the reports of determining the sample by FAAS in domestic and overse journals from 1996 to 2000,and generalizes the new advances in following four ways.
从以下 4个方面概括了该法的新进展 :1 )仪器装置上的新进展 ;2 )样品处理和分离富集技术 ;3)共存组分的干扰与消除方法 ;4 ) FAAS法的应用及间接测定含量的方法。
The recent progress of wind engineering study at Low Speed Aerodynamic Institute of CARDC;
中国空气动力研究与发展中心低速所风工程研究新进展
This paper briefly introduces the basic concept of the digital elevation model (DEM), summarizes the recent progress in the DEM application in the study of tectonogeomorphic features and enumerates and discusses some case histories of applications of relevant DEM data and techniques in the analysis of typical geomorphic features and study of macro-tectonogeomorphic evolution.
简要介绍了数字高程模型(DEM)的基本概念,系统总结了近些年来DEM空间分析技术在构造地貌研究中的最新进展,列举并讨论了DEM相关数据和技术在典型地貌特征分析和宏观构造地貌演化研究中的典型应用实例。
The observational cosmology and its recent progress are reviewed, including observational methods, Hubble constant, Hubble time, dark matter, dark energy, cosmic background radiation, large-scale structure, element abundance and active galactic nucleus, neutrino, gamma-ray bursts etc.
系统介绍了观测宇宙学和其最新进展,包括观测手段和哈勃常数和宇宙的年龄、宇宙的暗物质、暗能量、背景辐射、大尺度结构、元素丰度、活动星系核、中微子、γ暴等热点问题,并提出了观测宇宙学存在的问题和挑战。