他盯着看她指尖上的涡纹和流纹。
海滨地区广泛存在涡动沙纹,它很大程度上决定着波浪衰减和泥沙运动。
Vortex ripples widely exist in coastal area and greatly control the attenuation of wave and movement of sediment.
海滨地区广泛存在涡动沙纹,它很大程度上决定着波浪衰减和泥沙运动。
Vortex ripples widely exist in coastal area and greatly control the attenuation of wave and movement of sediment.
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