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The panel closes and the huge ship's powerful motors glow and hum.
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Soon, too, the faint hum of their powerful motors made itself heard.
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Servodrivers thrummed as powerful motors aligned the huge devices for firing.
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Inside the projectile our friends shut themselves up, and the powerful motors were started.
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They have a third rail, and powerful motors, and Mr.
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Iron Man tossed them aside: The powerful motors in his armor gave him great strength.
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Germany is also manifesting commendable enterprise in the perfection of light powerful motors for these dynamic machines.
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The powerful motors tugged and pulled and at last they were again afloat, but minus their anchor.
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Our powerful motors thrummed evenly.
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It can carry six to eight men, if necessary, altogether a huge, sturdy, dependable machine with two powerful motors.
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They were traveling fast, under the impulse of their own powerful motors and propellers, and also aided by a stiff breeze.
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In the meantime speed had likewise been augmented by the use of more powerful motors until 52 miles an hour was attained.
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Instead, powerful motors within the device provide a full range of responses, whether you're bouncing a ball on a string or reloading a shotgun.
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Powerful electro-magnets, judiciously arranged, must make powerful motors.