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| pull of the Earth (The ships will rise from the surface and accelerate to a high speed to pass over into the area where the pull of the Earth will begin speeding them up in the long fall back toward the station. alex) | |||
| earth gravity | |||
| terrestrial gravity | |||
| earth's gravity | |||
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| earth crust gravity | |||
| сила притяжения Земли: 1 phrase in 1 subject |
| Gyroscopes | 1 |