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Authors:Ryan Gibb, Patrick Ferris, David Allsopp, Thomas Gazagnaire, Anil Madhavapeddy
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（五）油气田企业跨省、自治区、直辖市销售与生产原油、天然气相关的服务。
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平台对旅行社的赋能则更具革命性，直接改变了行业的人力资本结构。
A thermodynamically consistent phase-field framework for viscoelastic fatigue fracture with dissipated-energy-driven toughness degradation
· 陈静 · 来源：dev资讯