| 1. | They vibrate subsonically . so , we re singing to them
以亚音速振动所以是我们对着它们唱歌 |
| 2. | This airplane can go out to high subsonic speeds very easily without using afterburner
这架飞机能够很轻松地在不打开加力的状态下飞到高亚音速。 |
| 3. | Several other types of ammunition were developed for this weapon , including tracer , subsonic ball and soft - core training ball
其他几个种类的武器弹药制定本等示踪剂,亚音速球和软球训练核心 |
| 4. | What he envisions is an ellipsoid with tiny wings that he says can take off vertically and move like an alien spaceship , albeit at subsonic speed
他所设想是极有椭翅膀起飞,他说像一个垂直和举措外国人飞船,不过亚音速速度 |
| 5. | It requires all subsonic aircrafts using the hong kong international airport to be certified as meeting the most stringent standards
按该条例规定，所有亚音速飞机必须持有证明书，确定飞机符合最严谨的噪音标准，方可在香港国际机场升降。 |
| 6. | The surface heat spurts spreads the craft to have supersonic hvof to spurt spreads , the ceramic good material spurts spreads , the supersonic electric arc spurts spreads and so on .
表面热喷涂工艺有超音速hvof喷涂、陶瓷棒材喷涂、超音速电弧喷涂、亚音速火焰喷涂等。 |
| 7. | With effect from 1 july 2002 , all chapter 2 subsonic jet aircraft as defined in part ii , volume i , annex 16 of the convention on international civil aviation , which only meet less stringent noise standards , are banned from landing and taking - off at the hong kong international airport
从2002年7月1日起，全面禁止噪音较强，属于国际民航公约附件16卷1第2部第2章所界定的亚音速喷射飞机在香港国际机场升降。 |
| 8. | A requires all subsonic narrow - bodied jet aircraft flying in and out of hong kong to meet with the most stringent international noise standard ; and requires all subsonic jet aircraft taking off or landing in hong kong to be certificated in accordance with international established procedures
A规定所有亚音速狭体喷射机必须符合最严格的国际噪音标准，方可在香港升降及b规定所有亚音速喷射机必须遵照国际民航公约规定程序领取证明书，方可在香港升降。 |
| 9. | The coatings deposited with a new subsonic flame spraying possess high bonding strength , low porosity and is low costly , at the same time , it is applied to the worksite of boiler tubes specially . the coatings applied to water wall tubes were deposited by subsonic flame spraying in this study
本课题采用了一种新型亚音速火焰喷涂技术制备锅炉水冷壁管道涂层，其涂层不仅结合强度高、孔隙率较低，而且涂层制备的成本低，特别适用于锅炉水冷壁管的现场喷涂。 |
| 10. | The comparison showed that : ( l ) farassat 1a formula is the simplest one and work well for the subsonic rotor . ( 2 ) both kirchhoff formula and k - fwh formula can predict the nonlinear noise generated by transonic rotor ; ( 3 ) when the surface is not positioned in the linear region , kirchhoff approach for rotating integration surface could lead to substantial error , but k - fwh formula can still work well
数值研究表明： farassat1a公式在预测线性噪声方面简单有效，适用于亚音速旋翼的噪声预测； kirchhoff公式和k - fwh公式均能够预测跨音速旋翼声场，并且具有较高的精度；当声源面位于流动非线性时， kirchhoff公式会导致很大的计算误差，而k - fwh公式不存在这样的问题。 |
