Over the next 150 years Londinium developed into a centre for trade and business, and also the administrative centre for the Roman-occupied areas in the rest of England. The new city included buildings like a basilica, an ampitheatre, temples to gods such as Mithas (a Persian deity), a forum and the Governorâs Palace.
AOV is simply an abreviation for Automatic Opening Vent. An AOV system is a control system designed to vent air or smoke for use in natural & smoke ventilation.
The higher the AOV the more you spread out your transaction, admin, etc costs. If every order costs you $8 to process, etc, then a $500 AOV means your transaction costs are a lot lower, in total, than if you have a $100 AOV. Here's an example.