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。
2
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 spraygun, 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。
3
The disadvantage is the extra spray direction requires a manual control of water cannon and gun Angle.