Atmospheric corrosion of pure copper under sheltered and unsheltered exposure condition during 1 year period in Shenyang atmosphere was studied.是什么意思_Atmospheric corrosion of pure copper under sheltered and unsheltered exposure condition during 1 year period in Shenyang atmosphere was studied.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句