...电子商务通过自己的BayerOne网站与客户开展业务往来，除订货外，还可以完成发货跟踪、查询原料安全数据单(MSDS)、化学证明(COAS)、购置历史记载等采购过程。Dow化学电子商务，伊斯曼化学等，均可为客户供给交易功效。
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acyl-CoAs 酰基辅酶A
真品证明书COAs Certificates of Authenticity
The tool supports both static and dynamic evaluation of COAs by integrating influence nets with discrete event systems modeling techniques.
该工具集成了基于离散事件系统建模技术的影响网络，既支持对行动过程的静态评估，又支持对行动过程的动态评估。
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CoAs have not stopped illegal marriages but have provided a barrier.
BBC: News - Panorama - Inside a big fat sham wedding
Computers and VCRs may coas a lot, but it's doubtful that they are a greater burden than one-room school houses were for the cruelly poorer America of 60 years ago.
FORBES: Are We Spending Too Much On Education?
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