time-space variation 时空变化
time-space variation pattern 时
time-space variation tendency 时空变化趋势
time-space variation of water level 时变水位场
space-time variation 时空变化
space time variation 时空变化
space time variation law 时空变化规律
space-time variation law 时空变化规律
The conclusion is: It's a variation in space, not in time.
结论是：它是空间的变化，而非时间的。
But the evidence supporting the alpha constant's variable nature was ambiguous, because it could also be due to a variation over time, or across different parts of space, researchers said.
但研究人员说，支持alpha常数的变化性质的证据是模糊不清的，因为它可能是由于时间的变化，或者由于穿过了宇宙的不同部分。
Space-time variation of gravity in Xi'an since 1992 is summarized.
概述了1992年以来西安地区的重力场时空变化特征。
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