剖面

Focusing on the PGE enrichment mechanism in the basic-ultrabasic intrusions in the Panxi rift, firstly, through the interpretation of TM photograph, data processing of regional geochemical exploration and geophysical prospecting results of gravity, magnetic force and seism, we analyzed the controlling effect of structure and magmatic movement on the PGE mineralization; Secondly, through the study of volcanic apparatus, petrography, measurement of comprehensive geochemical section, isotope tracing and dating of typical PGE-rich melanocratic rock series, we discussed the sources of the PGE-bearing mafic-ultramafic intrusions and basalts, their timing, evolvement sequences, the geochemical processes of magma crystallization and fractionation, and the relationship between magma evolution and structural development; Finally, through the analysis of PGE and chalcophile elements concentrations in the melanocratic rock series and the contrastive study with the Noril''sk magmatic Ni-Cu-PGE sulfide deposit, its related continental flood basalts and Siberia Traps, we discussed PGE mineralization characteristics and its enrichment mechanisms in the melanocratic rock series in the Panxi rift.

本项目首先围绕川西地区主要的PGE矿床及伴生矿的地质环境和有关的地质构造背景，通过TM卫片解译、区域化探和重、磁及地震物探资料分析，总体把握构造及岩浆活动对PGE成矿的控制作用；然后通过对典型富PGE暗色岩套的火山机构地质构造、岩石岩相学、地球化学、同位素定年和示踪等方面的工作，分析本区基性－超基性含矿岩体与喷出岩之间的成岩物质来源、侵入时代及演化序列，研究该区同一岩浆房分异结晶的地球化学过程及其随构造发展的耦合关系；最后通过对暗色岩套PGE地球化学剖面分析以及与俄罗斯诺里尔斯克陆内裂谷溢流型玄武岩中PGE矿化的岩石－构造环境对比研究，探讨该区暗色岩套中的矿化特点和富集部位及其PGE富集机制。

The Dayingezhuang gold deposit in the Jiaodong area,Shan dong Province,is a hidden(to a burial depth of more than 250 m from the surface),mesothermal,alteration-type gold deposit in a fractured zone.

大尹格庄金矿床为一隐伏的(埋深距地表250m以上)中温热液破碎带蚀变岩型金矿床，现已经有十几年的开采历史，从目前验证钻孔剖面来看，矿体在深部有再富集的趋势。

As a result of its high capability in interception of precipitation and enhanced evaporation of soil surface, the development of microbiotic crusts will more and more threaten the soil water condition which the artificial sand-fixing vegetation should rely on.

微生物结皮的逐年发育使其对降水的拦截能力和地表的蒸发能力都逐渐提高，并改变了水分在土壤剖面中的分配过程和格局，这对人工固沙植被赖以生存的土壤水环境产生了越来越大的威胁。

Using the survey data of several indexes as well as field experimental data of soil hydrology of microbiotic crusts in artificial vegetation-fixed sand dunes in Shapotou area, the impacts of microbiotic crusts on soil hydrological processes which included the penetration, interception and evaporation processes of precipitation were examined, and their mechanisms were also studied. The security problem of vegetation-fixing system due to the changed soil water environment in fixed sand dune area was analyzed further.

本文在上面的立意下，我们对沙坡头人工植被固沙区对微生物结皮的若干指标进行了详细的调查和试验，并安排了一系列微生物结皮土壤水文过程试验，从不同的角度揭示了微生物结皮在降雨渗透、拦截和蒸发过程中的作用，及其对降水在沙丘土壤剖面中的水分分配过程和格局的影响，并进一步分析了微生物结皮对固沙区土壤水环境的影响和植被固沙体系的安全问题。

The weight of large crude oil carrier midship section structure is minimized with genetic algorithm based on DNV rules.

本文采用遗传算法对大型油船中剖面结构进行了基于DNV规范的优化。

The paper described a knowledge-based CAD system for the generation of containership midship sections, its principles and the process of its development.

文中介绍了集装箱船中剖面生成基於知识的计算机辅助设计系统，及其基本原理。

After optimization, dimensions of some structural members are improved, and the total weight of the midship section is reduced.

经过优化后，船中剖面面积下降了2.6%。

The paper optimizes the midship section structure of large crude oil tanker based on DNV rules.

本文研究了基于DNV规范的大型油船中剖面结构优化设计。

The optimization of the midship section structure of a large crude oil carrier with genetic algorithm based on DNV rules is introduced.

采用遗传算法对大型油船中剖面结构进行了基于DNV规范的优化。

After optimization of the midship section structure, the paper studied optimum design of container ship transverse bulkhead structure based on CCS rules.

中剖面优化完成后，本文研究了基于CCS规范的巴拿马型集装箱船横舱壁结构的优化设计，提出了高效的优化方案。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。