设计降雨重现期
design rainfall return period
designed rainfall reappearing period
参数设计计算
paramenter design and calculation
产品生命周期设计
life-cycle design of product
product life cycle design
大庆油田建设设计研究院
Daqing Oilfield Design and Research Institute
daqing oilfield construction design institute
大庆油田建设设计研究院；长春市测绘院
The Institute of Daqing Oilfields Construction
大庆油田建设设计研究院勘察大队
exploring team
Daqing Oilfield Institute of Construction
Design and research
低阶程序设计设施
low level programming facility
电磁阀设计计算
Design of an Electromagnetic Valve
电磁设计计算
Electromagnetic design calculation
发射周期设计
transmission cycle design