parallel chord trusstrapezoid truss梯形: ladder-shaped trapezoid; tra ...桁架: truss形桁架: a truss; a-truss; k trussk形桁架: k k-truss; k truss; truss with sub-ties【建筑】扇形桁架。: fan truss下载手机词典可随时随地查词查翻译
