| 000 | 00600 a2200241 4500 | ||
|---|---|---|---|
| 001 | 275222 | ||
| 020 | _a | ||
| 041 | _aeng | ||
| 080 | _aLNASA CR 4224 : 1989 | ||
| 245 | _aTopology of modified helical gears and tooth contact analysis (TCA) program | ||
| 250 | _a | ||
| 260 | _aWashington, D.C. | ||
| 260 | _bNational Aeronautics and Space Administration(NASA) | ||
| 260 | _c1989 | ||
| 300 | _a160 p. | ||
| 300 | _c | ||
| 856 | _u | ||
| 490 | _aNASA CR 4224 : 1989 | ||
| 700 | _a | ||
| 650 | _a | ||
| 650 | _aHelical gears, Crowned gears, Gear geometry, Tooth contact analysis | ||
| 942 | _cPP | ||
| 942 | _2UDC | ||
| 999 |
_c232552 _d232552 |
||