基本解釋下弦桿應(yīng)力英漢例句雙語例句The bottom chord of the truss is used by pre-stress steel bar.主樓和裙房間採用大跨魚腹桁架，桁架下弦採用高強度預(yù)應(yīng)力鋼棒。bottom chord stress更多例句詞組短語短語bottom m chord stress 下弦桿應(yīng)力bottom chord stress更多詞組專業(yè)釋義土木建築工程下弦桿應(yīng)力