共 50 条
- [33] REQUIREMENTS FOR DIRECT DIGITAL CONTROL TRANSACTIONS OF THE SOCIETY OF INSTRUMENT TECHNOLOGY, 1965, 17 (04): : R11 - &
- [40] DIRECT DIGITAL-CONTROL ASHRAE JOURNAL-AMERICAN SOCIETY OF HEATING REFRIGERATING AND AIR-CONDITIONING ENGINEERS, 1984, 26 (11): : 45 - 46