安全拱 分载拱 辅助拱

safetyarch  detail>>

分载拱

safety arch  detail>>

辅助拱

discharging arch relieving arch saving arch  detail>>

安全拱

safety arch  detail>>

砖砌辅助拱

brick relieving arch  detail>>

安全拱架

safety arch  detail>>

墙面内的辅助拱

arriere vou ure arriere voussure arrierevoussure  detail>>

分载

load sharing  detail>>

卸载拱

discharging arch relieving arch safety arch  detail>>

桁助拱

brace rib arch braced-rib arch  detail>>

辅助安全功能

back up safety functions  detail>>

辅助安全机构

secondary safety mechanism  detail>>

辅助安全设备

auxiliary safety device  detail>>

全拱作用

full arching  detail>>

天然卸载拱

natural load transmitting arch natural load-transmitting arch  detail>>

部分载荷

fractional load part load partial load  detail>>

分载调变

divided-carrier modulation  detail>>

分载反拱

soil arch  detail>>