Numerical results show the multi-bits approach is practical.
数值结果表明，多比特信息分布式检测方案是可行的。
LinkedIn builds an index structure in their Hadoop pipeline - this produces a multi-TB lookup structure that USES perfect hashing (requiring only 2.5 bits per key).
LinkedIn在其Hadoop管道上构建了一个索引结构：这会产生几个TB的查找结构，该结构完美地使用了散列(每个键只需要2.5个位)。
PDC bits have been used to drill the homogeneous formation from soft to medium-hard, but they are not suitable for drilling in gravel and multi-interbedded formation.
PD C钻头用于软到中硬的均质地层钻进具有钻速高、寿命长等特点，但不适合含砾石地层和软硬交错地层。
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