| 1. | This function describes the envelope of the displacement curve .
这函数描绘出位移曲线的包络。 |
| 2. | The envelopes of the strain peaks is an exponential function .
应变峰值的包络线是一个指数函数。 |
| 3. | Successive positions of the wave front are then given by the envelopes of the secondary waves .
因此波前的相继位置即为次波的包络面。 |
| 4. | In fact, the envelope is identical in each case except for a scale factor .
事实上，在这几种情况下，除差一个倍率外，包络是是完全相同的。 |
| 5. | Evidently, there is another motion to be concerned with and that is the propagation of the modulation envelope .
显然，还应当考虑另外一种运动，那就是调制包络的传播。 |
| 6. | The sum of these two waves has an envelope, and as the waves travel along, the envelope rides on them at different speed .
两列波之和有一个包络，当两列波行进时，包络以不同的速率前进。 |
| 7. | The sum of these two waves has an envelope, and as the waves travel along the envelope rides on them at a different speed .
两列波之和有一个包络，当两列波行进时，包络以不同的速率前进。 |
| 8. | Planar double - enveloping worm gearing terminology
平面二次包络环面蜗杆传动术语 |
| 9. | About envelore of family of cuves seek way a annotation
关于包络曲线求法的一个注记 |
| 10. | Planar double - enveloping worm gearing accuracy
平面二次包络环面蜗杆传动精度 |
