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- 頻率Reynolds數frequency Reynolds number
- Reynolds數Reynolds number
- 在與實(shí)際飛行條件相對應的Mach數和Reynolds數條件下對典型的高超聲速航天飛行器進(jìn)行了實(shí)驗。Typical aerospace hypersonic vehicles(flight test bed EXPERT supported by ESTEC and potential re-entry demonstrator ARES-H proposed by EADS-ST) have been tested in the Mach and Reynolds number ranges corresponding to realistic flight conditions.
- 頻率frequency
- 俄羅斯科學(xué)院西伯利亞分院理論與應用力學(xué)研究所新研制的AT-303風(fēng)洞于1999年開(kāi)始投入使用。 由于具有較高的駐點(diǎn)壓力,AT-303能夠模擬飛行器再入時(shí)的真實(shí)Reynolds數,其Mach數范圍為8~20。The new wind tunnel AT-303 was commissioned in the Institute of Theoretical and Applied Mechanics in 1999.Owing to the high level of stagnation pressure,AT-303 is able to duplicate realistic flight Reynolds number values of re-entry vehicles,within the Mach number range of 8 to 20.In the frame of an ISTC project conducted by ITAM in collaboration with ESTEC and EADS-ST,aerodynamic investigations of different aerospace vehicles have been performed in the AT-303 wind tunnel.
- 頻率計cymometer
- 模數modulus
- 頻數frequence
- 頻率響應frequency response
- 層數number of plies
- 采樣頻率frequency of sampling
- 中位數median
- Reynolds方程Reynolds equation
- 出現頻率frequency of occurences
- 取數access
- 北京電臺以十幾種不同的頻率進(jìn)行廣播。Radio Beijing broadcasts on a dozen different frequencies.
- 補數complementary number
- 振動(dòng)頻率oscillation frequency
- 不可數名詞noun of continuous quantity
- 頻率表frequency list
