Another possibility is that the accelerated expansion arises not from a substance but from a modified form of gravity, one that behaves differently on cosmic scales of time and space.

另一种可能性是加速膨胀不是来自物质而是修改的重力形式，其作用在时空的宇宙尺度上是不同的。

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For example, the use of wheeled vehicles to transport goods and the separation of materials by gravity-gradient processes can be modified to be used in lunar conditions.

举例来说，轮式载重车辆和依赖重力实现材料剥离的技术，经过改进是可以在月球重力条件下使用的。

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For example, the use of wheeled vehicles to transport goods and the separation of materials by gravity-gradient processes can be modified to be used in lunar conditions.

举例来说，轮式载重车辆和依赖重力实现材料剥离的技术，经过改进是可以在月球重力条件下使用的。

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