铁路桥梁修建及其养护维修的技术科学。
铁路桥梁工程建设对河道堤防安全、河势稳定、输水安全、通航以及渠道治理规划等产生一定的影响。
Construction of railway Bridges has a great influence on security of levee, flow stability, security of water transferring, navigation, and canal management.
无粘结部分预应力混凝土同普通预应力混凝土相比具有很多有优点，在公路和铁路桥梁工程中得到广泛应用。
Compared with normal prestressed concrete, unbonded partially prestressed concrete has a lot of advantages, it is used extensively in highway and railway bridge engineering.
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