分层

Homoptera,Coleoptera and Lepidoptera were the dominant groups of pest insects,while those of predatory insects were Coleopteran,Hemiptera,Dip...

相同亚群落不同季节的垂直分层结构相似程度不同，不同亚群落在同一季节的垂直分层相似性也不同。

Appling gas chromatography method to determine single layer's output and water cut of commingle producing well enriches commingle production technology. This application not only can be used to determine single layer's output, but also water cut. This technology must play important role to develop Putaohua and Fuyu reservoir effectively.

气相色谱技术用来确定合采井分层产量、含水的应用技术丰富了葡扶合采技术，其应用不仅可以确定合采井分层产量，而且可以定性确定两套油层的含水，对研究两套油层的动用状况必将发挥重要作用。

Especially, the combined ratio estimator of domain total is investigated under stratified complemental sampling when auxiliary information can be used.

及该方案在分层抽样下的推广，在有辅助信息可用时构造域总量的分层联合比估计，并给出其方差和方差估计公式，同时我们给出了模拟结果，从模拟结果可以看出，给出的方差估计是估计量方差的近似无偏估计。

The main approach to solve this problem is to stratify the population studied through taking the confounder as the stratifying variable .

解决这一问题的主要方法是将混杂因子作为分层变量把被研究群体分层。

Considering the dispersity, covertness and fuzziness of drawing information, we propose a layered interpretation technology for engineering drawing based on geometry complexity. This technology uses layered organization of drawing information and primitive layered recognition based on the integration of drawing information to get the entity.

本文针对图样信息分散性、隐含性、模糊性的特点，引入了图样信息几何复杂度的概念，在此基础上提出了工程图样的层次理解技术，即通过对图样信息的分层组织和基于图样信息集成的基元体分层识别得到图样所表达的形体。

The nitride semiconductor Schottky electrode has a stack structure of a cupper having contact with a nitride semiconductor and a first electrode material formed on an upper layer of the cupper.

该氮化物半导体肖特基电极具有分层结构，该分层结构包括与氮化物半导体接触的铜层和在铜的上层上形成的第一电极材料。

The Green's tensor in frequency domain for cylindrical layered media was deduced from the 3-D Green dyadic for homogeneous media according to the propagation laws of waves in layered media,then the Green's tensor in spatial domain can be achieved with Fourier transformation ,which is a singular integral of wave-number.

根据分层介质中波的传播规律，由均匀介质中的三维张量格林函数得到频率域中柱状分层介质的张量格林函数表达式，经过傅立叶变换，可以得到空间域的格林函数，它是一个关于波数的奇异积分。

The Green's tensor in frequency domain for cylindrical layered media was deduced from the3-D Green dyadic for homogeneous media according to the propagation laws of waves in layered media,then the Green's tensor in spatial domain can be achieved with Fourier transformation,which is a singular integral of wave-number.

摘要根据分层介质中波的传播规律，由均匀介质中的三维张量格林函数得到频率域中柱状分层介质的张量格林函数表达式，经过傅立叶变换，可以得到空间域的格林函数，它是一个关于波数的奇异积分。

The research shows that in the Yinggehai basin, the formation of CO_(2) reservoir which is crust-sourced and crust-mental-mixed-sourced, mainly controlled by local action of hot fluid in the mud diapir area which is multi terms and multi zones and by physical-chemical mechanism of very thick marine calcareous sandstone and mudstone of Pliocene-Miocene. The volcano- and mantle-sourced CO_(2) in the Qiongdongnan basin and Pearl River Mouth basin is mainly controlled by volcanos activities and by the exist of large faults which reached to base to connect the gas from the mantle. According to different mechanism ang formation of reservoir os the the crustal rock-chemical genesis and volcano-and mantle-sourced CO_(2), we can follow the source of it, analysis and predict the migration and accumulation and distribution model of gas and espacially CO_(2), so as to help to make the plan of petroleum exploration and reduce the risk of exploration.

认为：莺歌海盆地壳源型及壳幔混合型CO2的形成及富集成藏，主要受控于泥底辟热流体晚期分层、分块和多期的局部上侵活动，和巨厚的上新统—中新统海相含钙砂泥岩的物理化学综合作用，且CO2运聚分布规律亦具多期和分层、分区的特点；琼东南盆地东部及珠江口盆地火山幔源成因型CO2则主要受控于幔源型火山活动和沟通深部气源的基底深大断裂的导气配置作用，CO2运聚富集规律与幔源型火山活动及深大断裂的发育展布密切相关，CO2主要来自地壳深部幔源火山活动所伴生的大量CO2；因此，根据壳源岩石化学成因型CO2与火山幔源成因型CO2不同成因机理及成藏条件，可以追踪CO2气源，可分析和预测天然气尤其是CO2的运聚分布规律，可为天然气勘探部署及决策提供依据，可减少和降低勘探风险。

It is shown that in the basins in the Eastern China, onshore and offshore, the formation of CO2 reservoir is crust-sourced and crust-mantal-mixed-sourced, mainly controlled by local activity of hot fluid into the mud diapir area in multi-phase and multi-zones in physical-chemical mechanism of very thick marine calcareous sandstone and mudstone of Pliocene-Miocene. The volcano- and mantle-sourced CO2 in the Qiongdongnan Basin and Pearl River Mouth Basin is mainly controlled by magmatism and major faults which cut through the basements and link to the mantle gas.

研究表明，中国东部陆相断陷盆地与东海陆架盆地及南海北部陆架琼东南盆地东部和珠江口盆地的CO2气藏及高含CO2油气藏中CO2均属典型的火山幔源型成因，主要受控于幔源型火山活动脱气与沟通深部气源的基底深大断裂的导气配置作用，其运聚富集规律及控制因素与幔源型火山活动及深大断裂的发育展布密切相关，CO2气源主要来自地壳深部幔源火山活动所脱出的大量原始CO2；南海北部陆架西区莺歌海盆地CO2气藏及中国东部陆相断陷盆地部分高含CO2油气藏中CO2，则属于壳源型及壳幔混合型成因，CO2形成及运聚成藏，主要受控于火山侵入活动对碳酸盐岩的烘烤和泥底辟热流体晚期分层分块多期的局部上侵活动与沉积巨厚的海相含钙砂泥岩的物理化学综合作用，其运聚分布规律具多期和分层分区的特点。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。