不再调平垂度紧线法
cable tensioning method never again adjusting the horizontal sag
弛垂度
safty equipmentgoggles glasses and films sag
SAg
垂度
SAg
SAGGING
vertical degree
overhang vertical extension
大垂度柔索
flexible cable with large sag
带垂度水平拉索－节段桥面系统
system of horizontal cable with sag and bridge dec
拱垂度
hogging and sagging value
精度垂直衰减
vertical dilution of precision {= VDOP
孔隙度垂向变化
vertical change of porosity