您要查找的是不是：
- The machine must break down at this busy hour. 正忙的时候，机器偏偏又坏了。
- The uses of this machine are manifold. 这台机器有多种用途。
- They picked up the yacht on their radar screen. 他们在雷达屏上看到了那艘游艇。
- The radar scanned the sky for enemy planes. 雷达密切监视天空，搜索敌机。
- The watchtower followed the aircraft by radar. 瞭望塔通过雷达追踪这架飞机的行踪。
- The new grinding machine passed all tests. 这台新磨床通过了所有的试验。
- Enemy ships were detected on the radar screen. 敌舰的影像已显现在雷达(屏幕)上。
- Oil feeds into the machine through this tubing. 油经过这个管子流入机器。
- The signal was picked up by a downrange radar station. 该信号被试验飞行方向之内的雷达站收到了。
- Did you get a good trade-in on your sewing machine? 你以旧缝纫机折价换新合算吗？
- A gunboat was detected by the radar. 雷达探测出一炮艇。
- Enemy aircraft were detected by our radar. 敌机被我方雷达发现。
- The ship was provided with radar equipment. 那船装有雷达设备。
- You may stop the machine by pushing this button. 按下这个按钮你就可以关掉这个机器。
- There are enemy aircraft on the radar screen. 雷达萤屏上出现了敌人的飞机。
- Just press the button and the machine will start. 只要一按电钮，机器就会开动。
- Our radar pinpointed the attacking planes. 我们的雷达确定了来袭敌机的精确方位。
- The machine cast up a big heap of earth. 机器卷起了一大堆泥土。
- The machine feeds back everything you need to know. 这架机器可以把你所需要知道的全部材料再提供出来。
- The machine is used to rip up the documents. 这台机器使用来搅碎旧布并为织出新布提供纤维的。
