The tailless delta-canard configuration is inherently aerodynamically unstable, which provides a high level of agility, particularly at supersonic speeds.
鸭式无尾翼布局具有高度机动性和优越的超音速性能，但亦具有先天空气动力上之不稳定性。
The paper introduces not touching single supersonic probe level measurement theory of operation, describes sort of factors that influences on measurement and install claim.
本文介绍非接触或单探头超声波物位检测仪的原理，分析影响检测仪正常使用的因素及其安装要求。
The paper introduces not touching single supersonic probe level measurement theory of operation, describes sort of factors that influences on measurement and install claim.
本文介绍非接触或单探头超声波物位检测仪的原理，分析影响检测仪正常使用的因素及其安装要求。
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