ppb
abbr.
Pappband (German=boards, hard cover) （德语）木板;
parts per billion 十亿分率;
polybrominated biphenyl (cattle poison) 多溴联苯（牛毒）;
pounds per barrel 磅/桶;
例句:
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And then presents two different real - timemulti - processor fault - tolerant scheduling algorithms: PPB - MFT - EDF andAPB - MFT - EDF.
提出了两种多处理机调度算法: PPB-MFT-EDF算法和 APB -MFT-EDF算法.
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Of these bands, 114 were polymorphic, and the percentage of polymorphic bands ( PPB ) was 95.00 %.
其中,多态性谱带114条,多态性带百分率 ( PPB ) 为95.00%.
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Sulfinert coating provides stable storage of sulfur and mercury at ppb levels in petroleum samples.
硫钝化的涂层为采样罐提供了稳定的性能,可以储存PPB级的含硫样品.