结构群
- 与 结构群 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The results showed:(1)The flora of community is rich and complex,and it belongs to the transitional zone for many genera,the subtropical-temperate zone geographical composition of genera are dominant,about 51.47% of the total genera,and there are characteristics which form subtropical to temperate zone transition.(2)The species are mostly composed of Fagaceae,Lauraceae,Anacardiacea...
结果表明(1)该群落区系组成比较丰富和复杂,属于许多属的过渡地带,具有从亚热带向温带过渡的特征;(2)种类组成以壳斗科、樟科、漆树科、卫矛科、榆科、五加科、金缕梅科等为主,但优势种、建群种以温带属为主;(3)种群生活型谱以高位芽占绝对优势,群落垂直结构明显。
-
To enrich and isolate different function hydrocarbon-degrading bacteria from long-term oil-contaminated environment, crude oil and hexadecane were used as sole carbon sources respectively. On the other hand, bacterium community structures of enrichment were analysed by both plate method and PCR-DGGE (denaturing gradient gel electrophoresis) method.
中文摘要:以原油和正十六烷为唯一碳源,从长期受石油污染的环境中富集和分离具有不同功能的石油烃降解菌,并利用平板法和PCR-DGGE法对不同碳源富集到的菌群结构进行分析。
-
The phase tracking principle of source-contained homodyne detection is researched, the frame diagram for phase detection and experimental results are given.
介绍了一种新型的光纤电压传感器结构和工作原理,分析了系统中椭圆芯双模光纤的传输模式和模间相干光斑的变化,采用熔接的方式进行相干光接收来获得正交相位漂移信号,根据模间群折射率差与光程差的关系设计调整光纤的长度,依据石英晶体和空气的绝缘强度进行传感光纤匝数设计,讨论了含源零差探测法的相位跟踪原理,给出了相位检测框架图及实验结果,分析表明该设计方案能达到相位跟踪的目的。
-
The comparative study on vegetation background survey of the stationsand the comparison on level of phytocoenology on zonal habitats indicates thatthe diminishment of the numbers of families,genus and species,compositionof life types,diversity of communities and habitats,;and the increscence in theproportion of photosynthesis functional groups of C3/C4 plant,richness ofspecies,density of tussock and tiller,diversity of species,evenness,leaf areaindex,leaf area duration,dry matter production of communities alongside thelatitude increasing and the temperature decreasing;and the dynamic curve ofthe community productivity also tend to steadily increase along with thetemperature going up and the heat accumulation gradually in moderate-temperate steppe station from violent fluctuation along with seasonal badly-distribution of precipitation in warm-temperature steppe station;manifestingthat transformable tendency of productivity pattern of the community from morevigorous net assimilation,sparser and higher crops stricture of tussock and tiller,and possession on more resources by less species inclined to thicker in densityof crops,superior effectiveness of multi-leaves and pattern of multi-speciesresource sharing,reflecting that bigger disparity of the vegetationcharacteristics and the style of the community growth in the two differentthermal-type steppe stations owing to background of natural-historicenvironment and combination of water and heat.
内蒙古草原区两个不同热量型研究站点植被本底调查和显域地境群落学水平的比较研究表明:随纬度增加和气温降低,植物科、属、种的数目,生活型组成,群落类型和生境类型的多样性均趋于减少,而C3/C4光合功能群比值和群落的物种丰富度,株丛密度,物种多样性,群落均匀度,叶面积指数,叶面积持续时间和群落干物质生产能力均趋于增加,群落生产力动态曲线从随天然降水的季节分布不均而剧烈波动趋向于随气温逐渐升高和热量逐步积累而稳定增长,显示出两站点植物群落从较为旺盛的群体净同化作用、较为稀疏高大的群体结构和少数物种占有较多群落资源的生产力格局向较高的群体密度、优良的多叶性能和多物种资源共享的群落生产力格局转变,反映出在内蒙古草原区不同的自然历史环境背景和不同的温度条件及其水热组合状况影响下,两个不同热量型草原站点植被性质的分异特征和显域地境群落生长模式的较大差别。
-
Genetic diversity and geographic variation innatural populations of the endemic Castanea species in China 植物学报, 1999,null
刘占林%李珊%阎桂琴%宋颐%赵桂仿华山新麦草自然居群的遗传结构和种内遗传多态性研究遗传学报, 2001,08
-
As to the problems in the development of Suzhou export-oriented economy, such as imbalance of industrial development, low proportion of tertiary industry, and irrationalness of industrial structure, we need change strategies to attract more qualified foreign investment, depend on industrial centralization to quicken the localization of foreign enterprises and promote the constant development of Suzhou export-oriented economy.
针对苏州外向型经济发展中存在的产业发展不均衡,第三产业比重偏低,产业结构不尽合理等问题,应改变招商引资策略,以质量标准引进外资,依靠产业集群化,加快外资企业落地生根,促进苏州外向型经济可持续发展。
-
To obtain a better understanding of the historical dynamics of present-day species in this region, we examined the population structure of chloroplast trnT-trnF sequence variation in Juniperus przewalskii, an endemic tree species mainly distributed in the northeast plateau.
由于青藏高原的地貌效应,第四纪冰期气候的反复变化应对现今该地区生物的地理分布及其居群遗传结构产生重大影响。
-
In view of the political situation of Chu state,Chapter Fouris a general examination on the whole process from contacts tointegration as an areal cultural structure---Chu kulturkreis,between the cultures of the Mang people,the Pu people,the Yuepeople,the Pa people,the Xuyi people,the Huaxia people andChu culture,followed by a brief explanation of the fundamentalcourse,the ways and features,of the cultural reintegration.Theauthor strives to be comprehensive in recovering the traits com-plex of Chu kulturkreis.
第四章结合楚国政治扩张状况,全面地考察楚文化与长江中游的群蛮、濮、越、巴、徐夷、华夏等民族文化的由接触而整合为一体化区域文化结构一楚文化圈的过程,扼要地分析了这次文化重整的基本线索、方式、特点等,力求全面地复原了楚文化圈的文化特质丛的概貌,具体来说,这次文化重整是从文化接触到文化整合的过程,其间包括适应、调整、再适应、新的综合四个阶段,其实现方式是新文化元素的采借和抗阻、旧文化元素的保持和抛弃、整个重整过程具有开放性、非平衡性、涨落、非线性四个特点。
-
Morphometric variation was used to examine the stock structure of the kuruma shrimpin the East China Sea and the Taiwan Strait.
利用外部形态之变异检视东海及台湾海峡产斑节虾之系群结构。
-
The present study demonstrates that the utility of morphometric characters for defining stocks of kuruma shrimp is available,but further verification of the stockstructure(e.g.,genetic evidence)is essential.
本研究利用外部形态已成功之判别斑节虾之系群结构,但更进一步之验证如遗传学证据是必须的。
- 推荐网络例句
-
However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
-
Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
-
A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。