单词：arch bridges
[网络] 指向标线；拱桥构造
arch bridges的用法和样例：
例句
- Floor-beam webs have cracked in tied arch bridges.在系干拱桥的横梁腹板上发生裂纹。
- The double-curved arch bridge is a bridge type for medium and small span.钢筋混凝土双曲拱桥是中小跨径常用的拱桥形式。
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