参展证
(permission可要可不要) certificate for exhibition
办理展会的参展证或观展证
to manage with certificate for exhibition or visit/visiting(2选1) certificate as of the expo
参展证
(permission可要可不要) certificate for exhibition
办理展会的参展证或观展证
to manage with certificate for exhibition or visit/visiting(2选1) certificate as of the expo