分类系统

Quality analysis of HPLC and HPCE supplied scientific theories for Radix Gentiana in cultivation and collection.

通过RAPD和ISSR指纹图谱的分析为正品龙胆分类及系统发育研究提供了分子生物学依据。

In order to explore the grain-size distribution characteristics and geo-genetic types of land desertification in Mo Us desert, the research on the grain-size characteristics of sediments since late Pleistocene has been carried out in the desert area and neighboring area such as inside desert, sand covered loess plateau, loess plateau and river valley. The research result shows that sediments of different geologic genetic types are the fundamental material source of sandy desertification in these areas and the distinguishing of different types of the sediments is the theoretical basis of classification of different geogenetic type of sandy desertification. The contribution of different geological roles on the land desertification and its significance to prevent and deal with the land desertification have also discussed.

为了研究毛乌素沙地沉积物的粒度特征与土地沙漠化的地质成因类型，通过系统研究沙地及相邻地区晚更新世以来在沙地内部、覆沙黄土区、黄土高原和河流谷地与湖泊等不同地质构造地貌条件下所形成的沉积物粒度特征，指出不同地质成因类型的沉积物是这些地区土地沙漠化的物质基础，区分不同类型的沉积物也是构成不同地质成因类型土地沙漠化分类的理论基础，探讨了不同地质作用对土地沙漠化的贡献及其对土地沙漠化防治方面的意义。

This paper gives a brief account of heat pump technology and the basic principle,recent development and classification of geothermic air-conditioner ,analyses the existing problems and gives an explanation of the general plotting,structure and main feature in developing water heat pump geothermic air-conditioner for household use.

简要介绍了热泵技术及地温空调基本原理、发展近况、分类方法，分析了其在家用系统开发存在的问题，描述了一种家用水源热泵地温空调开发的总体思路、结构原理及主要特点，并举实施例说明其节能、环保及利于家用推广的优势

Highway construction lacks quantitative technological guidance. At first, this paper conducts in depth research on classification method, compaction propeties, granulometric composition and crushing of stone....

本文首先从石料的分类方法、压实特性、粒径组成以及破碎性等方面进行研究，在明确填石路基填料的工程特性基础上，进而提出了填石路基的地基处理要求，然后结合广西水南路和甘肃兰临路填石路基试验路段上的现场研究，通过对填石路基填料最大粒径、松铺厚度、粒径组成，压实机械以及碾压遍数等影响压实效果因素的综合分析，系统研究了填石路基填料的摊铺与整平技术、压实机械选型技术、压实工艺以及边坡施工技术等施工工艺中的关键问题，最后提出石灰岩类和砂岩类填石路基的施工工艺要求。

Objective The kinds and activities of proteolytie enzymes of organs in the digestive system of Grus grus were studied to provide basic information for the taxonomy and evolvement study of wild birds.

目的 研究灰鹤消化系统各器官蛋白水解酶的种类和性质，为探讨野生鸟类的分类地位、系统演化提供基础资料。

Fleshy flattened twigs scarcely or sparsely branched;2.Leaf loosely spirally arranged,decurrent,partly covered or incompletely tocompletely encircling the stem,with numerous longitudinal striations on their abaxialsurface;3.Leaf thick in substance,hypostomatic;4.Stomata arranged in longitudinal...

本文对这些化石的形态特征和表皮构造进行了详细的研究，研究结果说明它们彼此有着系统演化上的联系，应属于同一个自然类群，并提出它们的分类位置应属于伏脂杉科的希默杉亚科的新意见。

These offered new basic informations and new views for classification and phylogenesis of hypotrichous ciliates and continually exploring the determinant factor of the formation of the cuticle ciliary pattern of ciliates.

这些为进一步探索纤毛虫皮层纤毛模式的形成和决定，为下毛类纤毛虫的分类和系统演化及细胞学等的研究提供新的基础资料和见解。

On the basis of past three years research, the taxonomy and fauna of family Ichneumonidae from northeast China were studied systematically, many specimens were collected in forest area from northeast China including Heilongjiang, Jilin and Liaoning Province, and numerous documents were synthesized and the domestic and foreign research history and situation of Ichneumonid were reviewed.

近三年来，广泛采集了东北地区(黑龙江、吉林、辽宁三省)的姬蜂标本，收集整理了大量文献资料，系统研究了东北地区姬蜂的种类及分布，回顾了国内外的研究历史和现状及分类地位的历史变革，介绍了标本采集制作方法，叙述了各虫态的形态特征，概述了成虫的寄主范围、寄生类型、寄生现象及生活习性。

The rhizobia isolated from Indigofera, Kummerowia and Astragalus in Shaanxi, Gansu and Ningxia were firstly and systematically studied.

首次对国内外未曾作过分类研究的木蓝属和鸡眼草属的根瘤菌以及陕甘宁地区的黄芪属根瘤菌进行全面、深入、系统地研究。

Based on the investigations of rhizobia resource of Shaanxi, Gansu and Ningxia, the research applied polyphaic taxonomy to study the rhizobia isolated from Astragalus, Indigofera, Kummerowia and so on in the different levels.

本研究在陕甘宁地区豆科植物根瘤菌资源调查的基础上，利用多相分类技术，从不同层次水平系统地研究了分离自黄芪、木蓝、鸡眼草等寄主的根瘤菌。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。