1-ba - addu
- 1-batch data set block
- 1-batch strings data set block
- 1-pole 9-position selector switch block
- 10 degree cutting scheme
- 13-zone program set block
- 1st PA heat exchanger
- 2-batch data set block
- 2-batch strings data set block
- 2-position motor control block
- 2-position ON/OFF controller block
- 2nd PA heat exchanger
- 2nd pumparound heat exchanger
- 2nd sulphur condenser
- 3-pole 3-position selector switch block
- 3-position motor control block
- 3-position ON/OFF controller block
- 4GL
- 4th generation language
- A group working to standardize OLE interfaces to scientific engineering and manufacturing systems
- a. b. noise hood fan
