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油气管道制造焊缝缺陷
释义
油气管道制造焊缝缺陷
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油气长输管道安全技术
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weld defects of oil and gas pipeline manufacturing
油气管道制造焊缝缺陷
油气管道焊接过程中产生于焊缝金属及其附近热影响区钢材表面或内部的缺陷。
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mass absorption coefficient
mass absorption cross section
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Massachusetts 128 highway
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Massachusetts Institute of Technology Radiation Laboratory Series
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massacre of Messa
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massage along the related meridian
massage for bone orthopedics
massage for health maintenance
Massager for legs
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mass analyzed ion kinetic energy spectrum
mass analyzed ion kinetic energy spectrum (MIKES)
mass analyzer
mass and energy
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