1) supersonic accretion
超声速吸积
2) ultrasonic velocity
超声声速
1.
An ultrasonic velocity softening accompanied by a sharp peak in attenuation was found near the Curie temperature (Tc) of paramagnetic insulator phase to ferromagnetic metal phase.
125)单相多晶样品的超声声速与衰减随温度的变化关系。
2.
An apparatus for measuring ultrasonic velocity of liquid under different hydrostat-ic pressure was specially designed with the method of Pulse-Echo-overlap.
１～６５０ＭＰａ流体静压力范围内测量了其超声声速和衰减系数。
3.
The longitudinal ultrasonic velocity and resistivity of single phase polycrystalline La1/3Sr2/3Fe0.
而超声声速从室温开始就出现了明显的软化,在电荷有序温度(TCO)附近达到最小值,随后又急剧硬化。
3) air-breathing hypersonics
吸气式高超声速技术
4) Air-breathing hypersonic vehicle
吸气式高超声速飞行器
1.
Air-breathing hypersonic vehicle(AHV) has been the next generation single stage to orbit vehicle and hypersonic cruise vehicle.
吸气式高超声速飞行器是下一代单级入轨和高超声速巡航研究的重点飞行器。
2.
A method using CFD technology is used for accurate prediction of aerodynamic force and heat of air-breathing hypersonic vehicles.
对吸气式高超声速飞行器而言,物面热流和摩阻的准确预测对飞行器设计及安全十分关键。
5) airbreathing hypersonic vehicle
吸气式高超声速飞行器
1.
PNS-NS combined method for solving two-dimensional powered airbreathing hypersonic vehicle's flowfield
二维带动力吸气式高超声速飞行器绕流的PNS-NS混合求解
2.
The flow field structure and starting characteristics of two-dimensional inlet/internal flowpath for an airbreathing hypersonic vehicle was analyzed using Ma∞=7 wind tunnel test method.
用Ma∞=7风洞试验的方法研究了一种吸气式高超声速飞行器二维进气道/内流道的流场特征与起动特性。
6) Hypersonic airbreathing propulsion
高超声速吸气式发动机
补充资料：超声
超声
UltrasofliCS
是指超出人耳听力范围的高频声(频率超过20000Hz）。超声具有与一般声音共同的物理性质，还具有一些其他重要的物理特性，如能够成束发射，直线传导，方向性好。传导过程中遇有声阻抗不同的反射界面时产生反射、折射、聚焦和散焦等现象。用于临床诊断的超声频率一般为2～7.5MHz。频率越高，对组织结构的分辨力越强，但远场声能容易被组织吸收、衰减，不易穿透较深的层次。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条