Terms for subject Bridge construction containing extension

English	Chinese
aerial extension	架空线
extension elongation	拉长
extension line	延长线
extension of building	扩建
extension on pile	接桩
extension spring	拉压弹簧
extension test	伸长试验
plane extension strain test	平面拉伸应变试验
triaxial extension test	三轴拉伸试验
unit extension	单位伸长
urban extension	城市扩展