您要查找的是不是：
- unmanned watch on hydro plant 水电厂无人值班
- The police put a watch on the suspect's house. 警方派人监视那个可疑人的住宅。
- Hardwall hose designed as flexible connection for sanitary hydro plant on boat. 硬质管,用于游艇洗手间。
- He was given a gold watch on his retirement. 他退休时得到了一块金表。
- We keep a close watch on the prisoners. 我们严密看守囚犯。
- One could build a fine wind or hydro plant with such a machine. 我们可以建立良好的风力或水力发电厂，这样的机器。
- The police have been keeping a close watch on the suspects' movements. 警方一直严密监视著可疑分子的活动。
- A better approach is to use small scale hydro plant. 一个更好的方法是使用小规模的水力发电厂。
- The police kept a close watch on the offenders. 警察密切注视着犯罪分子们的动向。
- Police kept a close watch on the vagrants. 警察严密监视那些流浪者。
- The police kept watch on the criminal's house. 警察监视该罪犯的家。
- He gave me this watch on my birthday. 我过生日时，他送了我这块手表。
- Keep a close watch on the enemy rs movements. 密切注意敌人的动向。
- Kept a close watch on expenditures. 保持对支出的谨慎关注。
- The man paid for the watch on the nail. 那位男士立即付了表钱。
- The police put a watch on the suspect' s house. 警方派人监视那个可疑人的住宅.
- The biggest hydro plant in the United States is located at the Grand Coulee Dam on the Columbia River in northern Washington. 大古力水坝位于华盛顿北部的哥伦比亚河上，美国最大的水电站座落在这里。
- A watch strap holds a watch on your wrist. 表带把手表系在手腕上。
- We can watch on the screen you see in front of you. 你可以注意看你前面的屏幕。
- They kept a close watch on his activities. 他们密切监视他的活动。
