general scour at bridge opening

例句：

1. 1. The engineer inspected the bridge opening to ensure it was in good condition before the construction began.
   工程师检查了桥梁开口，以确保在施工开始之前桥体状况良好。
2. 2. During the construction phase, the general scouring of the riverbed was necessary to remove debris and stabilize the foundation.
   在施工阶段，对河床进行一般冲刷是必要的，以清除杂物并稳定地基。
3. 3. After the completion of the bridge, a general scouring was conducted to remove any remaining debris and ensure safety for future traffic.
   桥梁建成后，进行了一次一般冲刷，以清除任何剩余的杂物，确保未来交通的安全。