antarctic data directory system
 

* 1.guidebook of data related to the Antarctic

2.ADDS

English Related Words* 12-tone system

* abo blood group system

* abo system

* absolute stability of a system

* absolute system

* absolute system of electrical units

* absolutely stable system

* abstract data type

* accelerated cost recovery system (acrs)

* accentual system

* access to announcing system via ic user stations

* account data

* accounting data

* accounting system

* activating system