| 000 | 00724 a2200289 4500 | ||
|---|---|---|---|
| 001 | 43973 | ||
| 020 | _a | ||
| 041 | _aeng | ||
| 080 | _a621-522Web | ||
| 245 | _aSingle-stage electrohydraulic servosystem for actuating an airflow valve with frequencies to 500 Hertz | ||
| 250 | _a | ||
| 260 | _aCleveland | ||
| 260 | _bNASA | ||
| 260 | _c1980 | ||
| 300 | _a32 p. | ||
| 300 | _c27.5 cm | ||
| 490 | _a | ||
| 100 | _aWebb, John A. | ||
| 700 | _aMehmed, Oral | ||
| 700 | _aLorenzo, Carl F. | ||
| 700 | _a | ||
| 650 | _a | ||
| 650 | _aAutomatic control | ||
| 650 | _aCompressors-Valves-Design and construction , Actuators-Design and construction , Hydraulic servomechanisms-Dynamics | ||
| 942 | _cBK | ||
| 942 | _2UDC | ||
| 999 |
_c43818 _d43818 |
||