lag gravel वाक्य
"lag gravel" हिंदी में lag gravel in a sentenceउदाहरण वाक्य
- Over long periods of time, as the landscape was lowered further by weathering and erosion, the silcrete became exposed at the surface as a lag gravel, an armoured carapace of " gibbers " ( also known as a " desert pavement " ), protecting the weaker regolith below from mechanical erosion.