Landing permits and other authorizations often require long processing times.

着陆许可证或者其它的批文通常需要更复杂的过程和更长的时间。

youdao

Agent: Captain, there are 32 Landing Permits for your Crewmembers. Please check them.

代理：船长，这是你船32名船员的登陆证，请核对一下。

youdao

Agent: Remember to inform your crew about going ashore with Landing Permits. This is the regulation of Rotterdam Port.

代理：请告知您的船员下船一定要带登陆证，这是鹿特丹港的规定。

youdao

Mr Hillo said that the operation "could not have happened without the Syrian government", which had agreed to issue landing permits for UN planes and also to allow the convoy to proceed to Azaz.

BBC: UN aid reaches Syria rebel-held northern area of Azaz