DIN 69905-1990 项目经济.项目开展.概念
作者:标准资料网 时间:2024-05-16 06:43:29 浏览:8259
来源:标准资料网
【英文标准名称】:Projectcontrolling;procedureofprojects;concepts
【原文标准名称】:项目经济.项目开展.概念
【标准号】:DIN69905-1990
【标准状态】:作废
【国别】:德国
【发布日期】:1990-12
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:管理;定义;规划程序;项目控制;网络分析;项目管理;生产管理;术语
【英文主题词】:terminology;management;projectmanagement;projectcontrolling;procedureofprojects;productionmanagement;definitions;networkanalysis
【摘要】:
【中国标准分类号】:N04
【国际标准分类号】:5500
【页数】:2P;A4
【正文语种】:德语
Product Code:SAE AIR1129
Title:Aerospace Ground Equipment Criteria for a Propellant Transfer Unit (Cancelled Jan 1999)
Issuing Committee:Age-2c Vehicle Maintenance And Aircraft Servicing Committee
Scope: The primary purpose of a Propellant Transfer Unit (PTU) is to temperature-condition and weigh a specific amount of propellant, and transfer if to a vehicle propellant tank. A secondary purpose of a PTU may be to drain propellant from the vehicle tank and return it to the transfer unit when required. The transfer unit may also be used for flushing the vehicle fill lines and transfer unit with appropriate flushing fluids, followed with nitrogen for the purpose of drying the lines and weigh tank. The transfer unit may include provisions for helium purging of the propellant transfer tank and lines, ad supplying a blanket of helium pressure to the transfer tank. Each PTU consists of a piping system with appropriate propellant and pneumatic valves, regulators, relief valves, filters and a propellant pump. Various components such as a scrubber, bubbler, propellant cooler (heat exchanger), propellant weigh tank, weigh scale and a chiller may make up the balance of the assembly. The PTU is an integrated assembly with all components mounted on a common support frame. Protective covers are provided for those units which operate outside of a controlled environment area. propellant cooler (heat exchanger), propellant weigh tank, weigh scale and a chiller may make up t propellant cooler (heat exchanger), propellant weigh tank, weigh scale and a chiller may make up the balance of the assembly. The PTU is an integrated assembly with all components mounted on a common support frame. Protective covers are provided for those units which operate outside of a controlled environment area. propellant cooler (heat exchanger), propellant weigh tank, weigh scale and a chiller may make up the balance of the assembly. The PTU is an integrated assembly with all components mounted on a common support frame. Protective covers are provided for those units which operate outside of a controlled environment area.he balance of the assembly. The PTU is an integrated assembly with all components mounted on a common support frame. Protective covers are provided for those units which operate outside of a controlled environment area.【英文标准名称】:WirelessRadioTelecommunicationIntersystemNon-SignalingDataCommunicationDMH(DataMessageHandler)
【原文标准名称】:无线电通信系统间非信号数据传输DMH(数据信息处理器)
【标准号】:ANSI/TIA/EIA124-D-2001
【标准状态】:作废
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:datacommunication;telecommunications;radioengineering
【摘要】:Describestheproceduresandmessagesnecessarytoprovidetowirelessserviceprovidersthenon-signalingdatacommunicationsrequiringinteractionbetweendifferentwirelesssystems
【中国标准分类号】:M32
【国际标准分类号】:33_060_01
【页数】:
【正文语种】:英语
