On the Methods to Keep Satellite/Ground Clocks Synchronous Accurately;
在轨卫星与地面时钟精确同步方法研究
Studying of quality problem in cement ground;
对当前水泥地面质量问题的探讨
The Formula Derivation from the Interaction Between the Free Falling Object and the Ground Force;
自由落体与地面之间作用力公式的推导
It gives an account of the environmental effect discrepancies done by surface and underground oil storage tanks,the relevant stipulations of Environmental Protection Agency(EPA),oil pollution law,National Pollutant Discharge Elimination System(NPDES)and so on.
译文叙述了地面和地下储油罐对环境影响的差异、美国环保局（EPA）对此的有关规定、石油污染法、全国污染物排除控制系统（NPDES）等。
Through discussing the quality status,the error categories of Guangxi historical surface meteorological data and its cause,it is advantageous to users in processing data objectively.
通过对广西历史地面气象资料的质量评估,分析地面历史资料整体质量状况、疑误数据类别和原因,让用户在使用数据时有一个全局和客观定量的把握。
Study on the causes of floor leakage in kitchen and toilet and preventive measures;
浅谈厨卫间地面渗漏的原因及预防措施
Quality problems of cement concrete floor and prevention measures thereof;
水泥混凝土地面的质量问题及防治措施
Development and design of automatic floor cleaning machine;
自动地面清洗机的开发设计
The self-test unit for EILog complete logging equipment is the complement and improvement to the function of EILog complete logging equipment, which receives surface system instruction through simulating downhole instruments, simul.
EILog成套测井装备地面系统自检装置是对EILog成套测井装备功能有益的补充和完善,自检装置通过模拟井下仪器接收地面系统指令,模拟各种井下仪器数据和声波波形并向地面系统发送,以确知的井下仪器状态来检验地面系统软硬件工作是否正常。
Several types of logging digital imaging surface systems such as MAXIS 500,ECLIPS,EXCELL 2000,which produced by foreign logging company recently,are introduced.
文中介绍国外石油测井公司近期推出的几种测井数字成象地面系统 ,并分析了当前国内数控测井的现状 ,指出中国测井界将面临新的挑战。
Preventing land subsidence by wastewater reuse in Taiyuan;
太原市利用污水回用防治地面沉降的探索
Effect of groundwater exploitation on land subsidence in Tianjin using multiple regression analysis method;
天津市地下水开采对地面沉降影响的多元回归分析
Study of urban land subsidence information management and prediction system based on GIS;
基于GIS的城市地面沉降信息管理与预测系统研究