试水位旋塞

例句：

1. 1. The engineer installed the test water valve to check the system's efficiency.
   工程师安装试水阀门来检查系统的效能。
2. 2. During the flood, the test water valve was used to prevent water from flowing into the basement.
   洪水期间，试水阀门被用来防止水流入地下室。
3. 3. After the leak was fixed, the engineer replaced the test water valve with a new one.
   泄漏修复后，工程师用一个新的试水阀门替换了旧的。