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- After deeply studying the working principal of supersonic Doppler and electrical compass, We design the Doppler navigation system. 详细研究了声波多普勒测速仪、电罗经工作原理，设计了多普勒导航系统，针对多普勒输出数据周期长和周期时变编写了导航计算程序，进行了数字仿真和实物工作测试，对实测数据进行分析及误差补偿，仿真和实测结果表明该系统具有很高的导航精度；
- Keywords supersonic Doppler;TVI;congenital heart disease; 超声多普勒;TVI;先天性心脏病;
- The physics of supersonic flight. 超音速飞行的物理性质
- Have you taken supersonic aircraft? 你坐过超音速飞机吗?
- supersonic Doppler 超声多普勒
- Developing the supersonic jet was quite an accomplishment. 开发超音速喷气机是一项了不起的成就。
- The Navy also needed a supersonic fighter. 海军也需要一架超音速战机。
- Supersonic Channel Airfoils for Reduced Drag. 减小阻力的超音速波道翼型。
- France Gauges Future Of Supersonic Transport. 法国评估超音速运输机的未来。
- A snail by comparison is supersonic. 相形之下，蜗牛的爬行倒可说是超音速的了。
- The Multifunction Doppler Signal Simulator. 多功能的多普勒信号模拟器。
- These planes travel at supersonic speeds. 这些飞机以超音速的速度飞行。
- Doppler Radar Observations of Dust Devils in Texas. 德克萨斯州沙尘暴的多普勒雷达观测。
- What cries supersonic and enchanted graph? 什么叫超声心动图?
- Design of the Doppler navigation system. 水下航行器的多普勒导航系统设计。
- This is a supersonic jet aircraft for training. 这是一架超音速喷气式教练机。
- CW Doppler fuse is a familiar type of fuses. 连续波多普勒引信是较为常见的一种引信。
- That is a supersonic passenger aircraft. 那是一架超音速客机。
- Few color Doppler flows were display in lipoma. 内部多无彩色血流信号。
- This is an instrument with which we can generate supersonic wave. 这是一台能产生超声波的仪器。
