First the machine takes off and hovers above the ground by firing downward-facing nozzles.
首先这种机器启动后加热朝下的喷嘴，会在地上盘旋。
Another variant switches multiple nozzles on or off to achieve a similar result but without the fine control.
另一个交换机的多个变种在喷嘴或关闭，以达到类似的结果，但没有很好的控制。
The straight blow-off pipe has less blow-off resistance, the flushing area of the swirl nozzles and the fan nozzles is large, the water pressure is high, and the water consumption is less.
直管排污管的排污阻力小，旋 流喷嘴、扇形喷嘴的冲洗面积大、水压高、用水量小。
The straight blow-off pipe has less blow-off resistance, the flushing area of the swirl nozzles and the fan nozzles is large, the water pressure is high, and the water consumption is less.
直管排污管的排污阻力小，旋 流喷嘴、扇形喷嘴的冲洗面积大、水压高、用水量小。
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