openboarding开缝铺板法
openboxsection敞开箱形构造截面
opencaisson沉井
opencaissonfoundation沉井基础
opencornice敞檐
opencuttunneling泌隧道工程
opendeckcarpark开敞式停车建筑物
opendistribution开启分送
openditchdrainage排水玫
opendrain排水玫
opendrainage排水玫
openeaves敞檐
openexpansiontankheatingsystem自由膨胀水箱式供热系统
openfloor露瞄栅楼板
openframegirder空腹桁架梁