the draincocks
这些放水旋塞
draincocks leaking
放水旋塞漏水
check draincocks
检查放水旋塞
draincocks installed
放水旋塞已安装
draincocks closed
放水旋塞关闭
draincocks opened
放水旋塞打开
draincocks need
放水旋塞需要
maintain draincocks
维护放水旋塞
repairing draincocks
修理放水旋塞
the draincocks
这些放水旋塞
draincocks leaking
放水旋塞漏水
check draincocks
检查放水旋塞
draincocks installed
放水旋塞已安装
draincocks closed
放水旋塞关闭
draincocks opened
放水旋塞打开
draincocks need
放水旋塞需要
maintain draincocks
维护放水旋塞
repairing draincocks
修理放水旋塞
探索常用高频词汇