flame propagation speed 火焰传播速度
brake propagation speed [车辆] 制动波速
release propagation speed [铁路] 缓解波速
fatigue crack propagation speed 疲劳裂纹扩展速度
mass propagation speed 质量传播速度
Crack propagation speed 裂缝扩展速度
Infinite propagation speed 无穷传播速度
speed of propagation 传播速度 ; 传播速率
emergency propagation speed 紧急制动波速
Empirical formula about flame propagation speed in tube is obtained.
依据实验值得到了管内火焰传播速度的经验公式。
The scanning strategies of worms and the propagation speed are analyzed.
对蠕虫扫描策略及其传播效率进行了深入分析；
Like light waves, acoustic (sound) waves are characterized by a frequency, wavelength and propagation speed.
声波就和光波一样，是以频率、波长和传播速度为其特征。
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