| 1. | A snail by comparison is supersonic . 相形之下,蜗牛的爬行倒可说是超音速的了。 |
| 2. | This moth's ear is tuned in to the bat's ultrasonic squeak . 这种蛾的耳朵能收听到蝙蝠的超音速的尖叫声。 |
| 3. | Hypersonic wind tunnels operating at very low densities were developed starting in about 1960 . 低密度超音速风洞大约开始发展于1960年。 |
| 4. | In conclusion we note the following general items concerning flow in supersonic nozzles . 最后,我们归纳几个关于超音速喷管流动的一般原则。 |
| 5. | At supersonic speeds the control load acts mainly on the deflected surface itself, and hence has its centroid even farther to the rear . 超音速时操纵载荷主要作用在偏转面本身上,因此它的作用中心甚至更加靠后。 |
| 6. | Although strain gage balances have been most useful in transonic and supersonic tunnels, they are by no means excluded from lowspeed work . 虽然,应变天平最适用于接近音速和跨超音速风洞,但丝毫不意味着不能用于低速实验。 |
| 7. | Departures form the ideal practice followed by the wright have been particularly noticeable in the development of supersonic and hypersonic vehicles . 特别值得注意的是在发展超音速和高超音速飞行器的过程中,偏离了莱特理想的工作方式。 |
| 8. | Since supersonic phenomena seldom occur naturally, the first studies of supersonic flow and flight were related to artifacts, from shells to turbines, rockets, and aircraft . 由于自然界难得产生超音速现象,所以超音速流动和飞机的早期研究同炮弹,汽轮机,火箭和飞机等人工产品有关。 |
| 9. | Study of surface alloying by supersonic spray coating 超音速喷涂表面合金化的研究 |
| 10. | Features of supersonic antiship missile ' s hitting probability 超音速反舰导弹命中概率的特点 |