In the second part, the performances of gilsonite modified bitumen are compared and analyzed with PG appraisal system through DSR, BBR and Brookfield revolving viscosity tests.是什么意思_In the second part, the performances of gilsonite modified bitumen are compared and analyzed with PG appraisal system through DSR, BBR and Brookfield revolving viscosity tests.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句