At the Fukushima Daiichi nuclear plant, water cannons spray jets of water to cool overheating nuclear reactors. But scientists say that's like using a squirt gun to put out a forest fire.
在福岛核电站，高压水炮喷洒着水柱，给过热的核反应堆降温。
Once you make a call, the washer will come to your house on a tricycle, carrying a water tank, a water pipe, a high-pressure spray gun, cleaning agents and towels.
只要打个电话，洗车工就骑着三轮车，载着水箱、水管、高压喷枪、清洗剂、毛巾等洗车工具应约而来。
The disadvantage is the extra spray direction requires a manual control of water cannon and gun Angle.
缺点是额外需要一名操作人员手动控制高炮水炮的喷雾方向与角度。
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