组成和结构 meaning in English
the nomenclature composition and structure of complexes
Examples
- In summary , the exotic species can affect native bird species in four main ways , 1 ) predation of birds or eggs by the exotic mammals ; 2 ) competition for habitats and foods with exotic birds , and loss of genetic diversity by hybridization with the closely - related exotic species ; 3 ) direct and indirect alterations of native habitats and food resources , and predation by the exotic invertebrates ; and 4 ) loss and fragmentation of habitats for native birds through altering species composition and structure of native plant communities by exotic plants
外来生物对鸟类的影响主要表现在以下几方面： ( 1 )外来哺乳动物对成鸟、幼鸟或鸟卵的捕食作用； ( 2 )外来鸟类与本地鸟类竞争栖息地和食物资源，与当地的近缘种杂交而造成基因流失； ( 3 )外来无脊椎动物改变本地鸟类的栖息环境和食物状况，甚至直接捕食本地鸟类； ( 4 )外来植物入侵改变入侵地的植物群落组成和结构，造成本地鸟类的栖息地丧失或破碎化，并通过改变入侵地生态系统的食物链结构而对高营养级的鸟类产生影响。 - We first review the current situation of metadata technology , and point out the tendency of close combination of metadata technology with computer technology and g1s technology . then we conclude the relevant concepts of geospatial metadata , and study its contents and hierachical structure by comparing two most influential metadata standards . also we analyze three existing systems with emphasis on their architectures and implemental strategies
论文首先回顾了元数据技术研究的国内外现状，指出元数据技术与计算机技术、 gis技术等紧密结合的发展趋势，总结了空间元数据的相关概念，并通过对国际上最具影响力的两个空间元数据标准的分析和比较，研究了空间元数据的内容组成和结构。 - However geological information is fully recorded in the remote sensing image , which made it possible for the choosing of this area as a dissection point to extract complex structural information of orogenic belt in west china . taking fully advantage of multi - band image richly bearing concealed geological information in combination with remote sensing analysis and structure analysis , to anatomy the supracrustal composition and structure of orogenic belt with the regional linear structures and their partitioned block and schistous geological masses as the macro - frame ( in corresponding to structure units and structure segments ) and with the rock masses , structure - rock assemblages , line - featured and belt - featured structures as well as penetrative and non - penetrative foliation ( primary stratum and trans position layering ) and folds as the texture and structure elements . the methods of how to distinguish granulite > ductile - shear zone , imposed fold , different deformed belts -
因而，本文选择这一地区作为我国西部地区从遥感图像上提取造山带复杂结构构造信息的解剖区，充分利用遥感图像多波段反映物质属性的特点和图像处理提取隐含信息的优势，采用遥感解析?构造解析相结合的研究方法，以区域线状构造及由它划分的块状、片状地质体为宏观骨架(对应于构造解析划分的构造单元、构造均匀区段) ，以地质体中的岩石岩体、构造岩石组合，线状、带状构造，透入性、非透入性面状(原始层理、新生面理)和褶皱等构造作为用于解析的结构构造要素，进行造山带表壳组成和结构构造解析研究。 - Polybenzoxazine / vermiculite hybrid nanocomposites were prepared from two kinds of polybenzoxazine precursors and two kinds of organically modified - vermiculite minerals and expanded - vermiculite which were consisted of vermiculite , hydrobiotite and phlogopite . after treatment of vermiculite minerals by hexadecyl trimethylam monium bromide ( ctab ) , the d001 of vermiculite layers of vermiculite mineral increased from 1 . 43nm to 2 . 67nm and developed a d002 = 1 . 34nm
本文分析了蛭石精矿和膨胀蛭石的组成和结构，用十六烷基三甲基溴化铵( ctab )进行了有机化处理，再通过熔融或溶液混合插层苯并嗯嗪树脂( ben )制备了ben插层蛭石纳米复合材料，并采用蒙脱土进行了对照实验。 - In original and jamming slightly vegetation , because dead roots , branch and leaves back to soil , soil organic matter higher , soil available phosphorus higher , too ; chemical and physical characters of soil were stabilization . the reason were original vegetation have more species and structure of community was stable . the degradation of fertility and structure of soil in secondary vegetation was influenced by change with structure and form of community
在人为干扰小的原生性森林，植物种类丰富，群落结构稳定，植物死根系和枯枝落叶全部回归土壤，土壤有机质含量高，养分呈有机态为多，故有效磷较高，土壤理化性质较稳定；次生植被群落土壤结构和肥力的退化是由于群落组成和结构的改变导致枯枝落叶成分和土壤发规白山地还小问沙消民俗一非定俗地征王卿乔忡旺w比收财育环境差异而引起，次生植被土壤的退化状态随植被退化程度不同而有差异。