timescale 考研

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.

在此同时，SIM应能提供黯淡次的位置资讯，从侦测最稀薄的。