The waterproof cable gets the energy from a power distribution board near the lake to make the electric propeller fan work.
2.
The battery-powered PSA could move in any direction using six tiny enclosed propeller fans and have a flat-screen video panel on one side to display data.
3.
In addition, there is an electric propeller fan in its body so that it can be inflated at any time, in either good or bad weather.
4.
The electric propeller fan also keeps the air circulating inside of the rubber duck, so that the air always keeps the shape of the rubber duck sculpture.
5.
To aid in cooling, a forced air cooling system used a propeller fan to further direct airflow across the cylinders without an encased cooling shroud, and it used a dry sump oil lubrication design.
6.
The horse whim was replaced by an electric winder, and air shaft sunk to the workings and fitted with an electric propeller fan, a screening and crushing plant was erected, and power supplied by the Electric Supply Company Limited.
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