Instead it predicts that time slows down in a gravitational field, making clocks run a little slower on Earth's surface than in deep space.
与此相反，相对论预测，时间在引力场作用下要放慢，例如，在地球表面运行的时钟略慢于高度深空。
If the universe's space-time is positively curved, like the surface of a sphere, parallel beams would come together.
如果宇宙的时空像球体表面一样正向弯曲，平行的光线就会交合在一起。
The surface electromyogram(SEMG) signals are the time and space synthesis result of complicated muscle electricity active on the top of the skin.
表面肌电信号是一种复杂的表皮下肌肉活动在皮肤表面处的时间和空间上的综合结果。
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