dual-line subsurface safety valve

例句：

1. 1.The dual-line subsurface safety valve is designed to prevent leaks in underground pipelines.
   双线式地下安全阀的设计目的是防止地下管道的泄漏。
2. 2. The engineers carefully inspected the dual-line subsurface safety valve before installing it.
   工程师们在安装之前仔细检查了双线式地下安全阀。
3. 3. Due to its robust design, the dual-line subsurface safety valve can withstand extreme conditions.
   由于其坚固的设计，双线式地下安全阀能够承受极端条件。