常見例句雙語例句The lateral stiffness of the single rib arch is very small due to it removed the lateral bracing, so the lateral stability of the arch rib is the acute issue.由于去掉了中間的橫向聯(lián)系，側(cè)向剛度很小，拱橋的橫向穩(wěn)定問題特別突出。 返回 acute arch