非平行弦杆桁架chord: n. 1.〔诗〕(琴)弦;(心)弦;【音乐】和弦,和(谐 ...truss: n. 1.(干草等的)捆,把,束,一束干草〔老干草56磅 ...bottom chord of roof truss: 屋架下弦broken chord truss: 曲弦桁架chord member of truss: 桁架弦杆下载手机词典可随时随地查词查翻译