请求调查的公函

【法】 letters of requistorial

请求的英语翻译：

ask for; beg; claim; desire; petition; pray for; request; solicit
【计】 C; request
【经】 application; demand; petition; request; solicit

调查的英语翻译：

examine; inspect; investigate; look into; probe; search; survey
【医】 inquisition; investigation; survey
【经】 escalation; inquiry; investigate; investigation; probe; survey

公函的英语翻译：

official letter
【法】 commu'niqu'e; missive; official correspondence; official letter