gas ballast port

例句：

1. 1. The gas balance port is crucial for maintaining the integrity of the pipeline system.
   气体平衡端口对于保持管道系统的完整性至关重要。
2. 2. During the installation process, the gas balance port must be properly sealed to prevent leakage.
   在安装过程中，必须正确密封气体平衡端口以防止泄漏。
3. 3. The gas balance port is designed to allow for the controlled release of gas during maintenance activities.
   气体平衡端口设计用于在维护活动期间控制气体的释放。