简介：介绍了用CorelDRAW数字化制图系统制作《1：10万枣庄市水利图》的基本过程，即准备工作、数字化、数据编辑、图形输出等；总结了制图过程作业中的经验和体会。

简介：Source:MITTechnologyntroductionNotallbreakthroughsarecreatedequal.Somearrivemoreorlessasusablethings;othersmainlysetthestageforinnovationsthatemergelater,andwehavetoestimatewhenthatwillbe.Butwe’dbetthateveryoneofthemilestonesonthislistwillbeworthfollowinginthecomingyears.1.MagicLeap

简介：填图前准备工作、野外地质填图工作、室内填图资料整理

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简介：2015TopTenRareEarthScienceandTechnologyNewshasbeenrevealedbyChinaRareEarthInformationCenter,NationalInformationNetworkandthemediaof'RareEarthInformation','ChineseRareEarths','ChinaRareEarthInformation'andChinaRareEarthNet.Thetoptenrareearthscienceandtechnologynewsareselectedfrommorethan100rareearthscienceandtechnologynewsreportedbythe

简介：OrganizedbyChinaRareEarthInformationCenterandNationalRareEarthInformationNetworkandco-sponsoredbyInformationSpecialtyCommitteeofChinaRareEarthSociety,TechnologyandEconomySpecialtyCommitteeofChinaRareEarthSociety,NorthernRareEarthIndustryProductivityPromotionCenteraswellasmediaincluding'RareEarth

简介：1.ManagementtotheInvestmentinRareEarthIndustryConfirmedInJuly2004,"DecisionontheReforminInvestmentSystem"wasformallypublicizedbytheStateCouncilofthePeople'sRepublicofChina.ThefifthitemintheDecisionstipulatesthatoreexploitation,smelting&separationandrareearthdeep-processedprojectswithtotalinvestmentoverRMB￥100millionshouldbeapprovedbytheinvestmentgoverningdepartmentoftheStateCouncil,andthatother

简介：基于传统GM（1，1）模型的建模理论，结合建筑物的变形特点，采用实时动态GM（1，1）模型，并辅以残差对模型进行修正，即将动态预报与残差修正相结合，形成基于残差改正的动态GM（1，1）模型。实际算例表明，基于残差修正的动态GM（1，1）模型，能顾及参数的时变性，可显著改善GM（1，1）模型的拟合及预报精度。

简介：7.ChinesescientistsindependentlydevelopedthecosteffectiveLa-Fe-BserieshydrogenstoragematerialsAftermorethanfouryearsefforts,hydrogenstorageresearchteaminBaotouResearchInstituteofRareEarthshaddevelopedLa_(15)Fe_(77)B_8,La_(17)Fe_(76)B_7andLa_8Fe_(27)B_(24)serieshydrogenstoragealloys,whichhavethemultiphasestructureincludingLaNi_5phase,

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简介：6."Developmentofhigh-performancerareearthluminescentmaterialforwhiteLED"projectbyFujianInstituteofResearchontheStructureofMatter(FJIRSM)passedtheacceptance"Developmentofhigh-performancerareearthluminescentmaterialforwhiteLED",akeyspecificS&TsubjectinFujianprovince,ledbyFujianInstituteofResearchontheStructureofMatter(FJIRSM)passedtheexpertsacceptanceonJanuary29,2015.

简介：OrganizedbvChinaRareEarthInformationCenterandNationalRareEarthInformationNetworkandco-sponsoredbyInformationSpecialtyCommitteeofChinaRareEarthSociety,TechnologyandEconomySpecialtyCommitteeofChinaRareEarthSociety,NorthernRareEarthIndustryPromotionCenteras

简介：PriceofrareearthsindomesticmarketwasbriskinMay.PricesofPrNdoxideandPrNdmischmetalkeptarisingtendency.Manypersonstookapositiveattitudetowardthetrend.ItwassaidthatsomedealershadstartedtostockupREoxides.

简介：论述了变形监测建模的常用方法——灰色系统理论，结合工程实例，建立GM（1，1）预测模型，应用于围堰工程变形监测数据分析，并对模型的精度进行检验。预测了未来变形趋势，证实了围堰变形监测分析中使用灰色GM（1，1）预测方法的可行性。

简介：ＷＩＬＤ─Ａ１０仪投影器主付轴的校正游传金（武汉测绘院汉口）出厂编号ＮＯ：４０５４之后的ＷＩＬＤ－Ａ１０仪，投影器在ＸＺ平面内绕ＡＡ轴转动，称为绕主轴旋转；而投影器在ＹＺ平面内绕ＢＢ轴转动，定义为绕付轴旋转，（见图１）ＡＡ轴与ＢＢ轴理应精确交于一点，...

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简介：WILD-A10仪带地球曲率自动改正装置的77点方格网量测精度有时很低，达不到0．05‰。其原因是地球曲率自动改正装置机械部分有故障。因此，不但应对地球曲率自动改正装置进行通常的三项检校，还应补充地球曲率自动改正装置的触头与地球曲率自动改正板吻合性检校。

简介：Oracle10g的Spatial模块提供了空间操作,这些空间操作划分为可直接调用空间操作和间接调用的空间操作,基于OO4O实现这些空间操作,并将结果保存,再由MapX从保存的结果中获取分析数据作进一步处理,从而增强开发系统的的空间操作能力.

简介：河南省通柘煤田煤炭资源丰富,主要可采煤层为山西组二_1~2煤,煤层结构简单,煤厚稳定,煤类以无烟煤和贫煤为主,有少量的瘦煤、焦煤和天然焦,煤化程度从东向西逐渐升高,低灰、低~特低硫、特低~低磷、特低氯、高~特高热值。