SAE AMS7250 Nuts, Self-Locking Steel, Corrosion and Heat Resistant, High Strength, All-Metal, 1200Mdf Use, Unified (Mil
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来源:标准资料网
Product Code:SAE AMS7250
Title:Nuts, Self-Locking Steel, Corrosion and Heat Resistant, High Strength, All-Metal, 1200Mdf Use, Unified (Mil-S-7742) Thread Form (Cancelled Oct 1990)
Issuing Committee:
Scope:
【英文标准名称】:Geographicinformation-Simplefeatureaccess-SQLoption
【原文标准名称】:地理信息.简单特征选取.结构化查询语言(SQL)选项
【标准号】:BSENISO19125-2-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-02-08
【实施或试行日期】:2005-02-08
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:建筑;坐标系(地理);数据描述;数据处理;数据表示;数据传送;定义;定义(术语);英语;特征块;大地测量学;地理信息;地理学;几何;信息处理;模型;计划;结构化询问语言
【英文主题词】:Construction;Coordinates(geography);Datadescription;Dataprocessing;Datarepresentation;Datatransfer;Definition;Definitions;Englishlanguage;Featureblocks;Geodesy;Geographicinformation;Geography;Geometry;Informationprocessing;Models;Schemes;StructuredQueryLanguage
【摘要】:ThispartofISO19125:2004specifiesanSQLschemathatsupportsstorage,retrieval,queryandupdateofsimplegeospatialfeaturecollectionsviatheSQLCallLevelInterface(SQL/CLI)andestablishesanarchitecturefortheimplementationoffeaturetables.ThispartofISO19125:2004definestermstousewithinthearchitecture.ofgeographicinformationanddefinesasimplefeatureprofileofISO19107.Inaddition,thispartofISO19125:2004describesasetofSQLGeometryTypestogetherwithSQLfunctionsonthosetypes.TheGeometryTypesandFunctionsdescribedrepresentaprofileofISO13249-3.ThispartofISO19125:2004standardizesthenamesandgeometricdefinitionsoftheSQLTypesforGeometryandthenames,signaturesandgeometricdefinitionsoftheSQLFunctionsforGeometry.ThispartofISO19125:2004doesnotattempttostandardizeanddoesnotdependuponanypartofthemechanismbywhichTypesareaddedandmaintainedintheSQLenvironment,includingthefollowing:thesyntaxandfunctionalityprovidedfordefiningtypes;thesyntaxandfunctionalityprovidedfordefiningSQLfunctions;thephysicalstorageoftypeinstancesinthedatabase;specificterminologyusedtorefertoUserDefinedTypes,forexample,UDT.
【中国标准分类号】:A76
【国际标准分类号】:35_240_70
【页数】:72P.;A4
【正文语种】:英语
【英文标准名称】:Naturalgas-Energydetermination
【原文标准名称】:天然气.能量测定
【标准号】:ISO15112-2007
【标准状态】:作废
【国别】:国际
【发布日期】:2007-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC193
【标准类型】:()
【标准水平】:()
【中文主题词】:热值;定义;能量;气体质量;数学计算;测量;气体测量;天然气;特性;容积测量
【英文主题词】:Calorificvalue;Calorificvalues;Definitions;Energy;Gasquality;Mathematicalcalculations;Measurement;Measurementofgases;Naturalgas;Properties;Volumemeasurement
【摘要】:ThisInternationalStandardprovidesthemeansforenergydeterminationofnaturalgasbymeasurementorbycalculation,anddescribestherelatedtechniquesandmeasuresthatarenecessarytotake.Thecalculationofthermalenergyisbasedontheseparatemeasurementofthequantity,eitherbymassorbyvolume,ofgastransferredanditsmeasuredorcalculatedcalorificvalue.Thegeneralmeansofcalculatinguncertaintiesarealsogiven.Onlysystemscurrentlyinusearedescribed.ThisInternationalStandardappliestoanygas-measuringstationfromdomestictoverylargehigh-pressuretransmission.Newtechniquesarenotexcludedprovidedtheirprovenperformanceisequivalentto,orbetterthan,thatofthosetechniquesreferredtointhisInternationalStandard.Gas-measuringsystemsarenotthesubjectofthisInternationalStandard.
【中国标准分类号】:E24
【国际标准分类号】:75_060
【页数】:62P;A4
【正文语种】:英语
