那位知道如何实现零缺陷的汽车元件设计生产UG网-UG论坛-模具培训UG技术,UG学习,UG交流,NX杂志,UG培训,模具培训,UG下载,模具技术,数控编程,CAD,CAM,CAE,一切尽在UG网 件中，供货商甚至将缺陷率由一般常用的百万分之一（Parts Per Million, PPM）单位，提升到十亿分之一（Parts Per Billion, PPB），即每生产十亿个组件才可能出现有问题的产品。因此通过有效控制DPM可减少因为电子器件失常造成的汽车驾
Researchers can still account for nearly every drop of water and watt of sunlight, track parts-per-billion flows of carbon and oxygen, and monitor every organism.
研究人员依然能够分析几乎每一滴水、每一瓦特阳光，能够追踪碳氧流量以及监测每一种生物体。
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It works at a very low concentration-10 partsperbillion-so you can't smell the compound.
这种物质在极低浓度下(10ppb)就可以发挥作用，因此，你是闻不到这种物质的。
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The Breast Cancer Fund collected 2 samples of 6 different types of food marketed to children, and found levels of BPA ranging from 21 partsperbillion (PPB) to 77.5 PPB, with an average of 49 PPB.