The German occupational exposure limit for fumes and aerosols emitted from hot bitumen is a technical guidance value, which reflects technical feasibility and is not primarily based on toxicological findings.是什么意思_The German occupational exposure limit for fumes and aerosols emitted from hot bitumen is a technical guidance value, which reflects technical feasibility and is not primarily based on toxicological findings.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句