watertight closure log

例句：

1. 1.The engineers used a watertight closure log to ensure the integrity of the pipeline.
   工程师们使用一个密封式的关闭日志来确保管道的完整性。
2. 2. The construction crew followed the watertight closure log to ensure proper installation of the valves.
   施工队伍遵循密封式关闭日志来确保阀门的正确安装。
3. 3.The safety inspector reviewed the watertight closure log to identify any potential hazards before the project began.
   安全检查员审查了密封式关闭日志，以识别任何潜在的危险，在项目开始之前。