The java.util.concurrent package contains many more nifty utilities that extend well beyond Collections, particularly in the.locks and.atomic packages.
concurrent包还包含了其他许多好用的实用程序，它们很好地扩展到了Collections之外，尤其是在. locks和.atomic包中。
Nanotubes are actually quite nifty in principle - molecular strands of carbon molecules arranged in hexagonal configurations that are made up of much more empty space than mass.
碳纳米管实际上在理论上相当完美——六角形配置排列的碳分子，由碳原子和比其重得多得多的空间组成。
Nanotubes are actually quite nifty in principle - molecular strands of carbon molecules arranged in hexagonal configurations that are made up of much more empty space than mass.
碳纳米管实际上在理论上相当完美——六角形配置排列的碳分子，由碳原子和比其重得多得多的空间组成。
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