Not long ago, the AmericanNationalStandardsInstitute(ANSI)studied out a new standard called Fibre Distributed Data Interface(FDDI).
美国国家标准研究所(ANSI)前不久研究并制订了一个新标准,叫做FDDI(光纤分布数据接口)。
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For decades, AmericannationalstandardsinstituteANSI flange design has been for the oil and gas industry is provided one of the sealing technology, and effectiveness.