经过修正后的小波系数重构得到的信号图能够消去大部分噪声，清晰地反映入射波和反射波之间的时差。
The noise-extracted signal which is reconstructed by the revised wavelet coefficient could clearly reflect the time difference between incidence wave and reflection wave.
孝感话“把”的特点，显示了“把”在地域上的共时差异，反映了语言历史演变的轨迹。
The character of "Ba" in Xiaogan dialect, bespeak its simutaneous difference in area, reflect the developing trace of linguistic history.
语言的共时差异往往反映历时的演变，濒危语言也是一样。
Synchronic differences in language often reflect the diachronic evolution, so do the endangered languages.
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