PREVIEW
... he power is strong, the bricks can fly.
Designers who combined the advantages and disadvantages of electric and oil-powered, resolutely set the 1.x version of the flight system as oil-powered, even when electric and battery technologies are very mature.
The designer decided on the oil move for the sake of speed, but when the 2.x electric version came out, the short combat radius and time of the oil move immediately made the 1.x version useless.
Fortunately, after the 1.x oil ...
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