美国石油协会对适合应用于石油和天然气行业的管材制定了标准(如图4)。
The American Petroleum Institute (API) provides standards for pipe suitable for use in both the oil and natural gas industries (figure 4).
该联盟与美国石油和天然气工业、商业协会、州立机构、学术团体和国家能源技术实验室建立了合作关系。
The consortium creates a partnership with the U. S. petroleum and natural gas industries and trade associations, state funding agencies, academia, and the National Energy Technology Laboratory.
该联盟与美国石油和天然气工业、商业协会、州立机构、学术团体和国家能源技术实验室建立了合作关系。
The consortium creates a partnership with the U. S. petroleum and natural gas industries and trade associations, state funding agencies, academia, and the National Energy Technology Laboratory.
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