[方]格状水系
trellis (trellised)drainage
亩中山水系列
landscape within one mu area
5万水系沉积物测量
50000 Stream Sediment Survey
5 ten thousand hydrographical sedimentary deposits
MPS多脉冲防水系统
Multi Pulse Sequencing waterproofing technology
ZrO2-CaO水系
Water system of ZrO 2-CaO
安全壳冷却水系统
containment vessel cooling water system
暗排水系统
drainage system with underground pipe lines
坝面排水系统设计
design of dam face drainage system