The reason of the brittle rupture of 4Cr9Si2 steel wire for valve during cold drawing after medium annealing is carefully analyzed by means of SEM/EDX, phase extraction & X-ray diffraction analysis and Thermo-Calc thermodynamic phase calculation, etc.是什么意思_The reason of the brittle rupture of 4Cr9Si2 steel wire for valve during cold drawing after medium annealing is carefully analyzed by means of SEM/EDX, phase extraction & X-ray diffraction analysis and Thermo-Calc thermodynamic phase calculation, etc.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句