climatic changes on a timescale of tens of thousands of years.
数万年中的气候变化。
climatic changes on a timescale of tens of thousands of years.
数万年中的气候变化。
Working on a comparable timescale, SIM should provide positional information for a subsample of faint stars, thereby probing the most tenuous star streams.
在此同,SIM应能提供黯淡恒星次级样本的位置资讯,从侦测最稀薄的恒星流。
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