Checking whether the used mechanical and electrical products to be imported meet the compulsory requirements of the technical norms of the state concerning safety, hygiene, environmental protection, etc.是什么意思_Checking whether the used mechanical and electrical products to be imported meet the compulsory requirements of the technical norms of the state concerning safety, hygiene, environmental protection, etc.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句