well rounded gravel

基本解释圆度好的砾石

网络释义

1)well rounded gravel,圆度好的砾石2)rounded gravel,圆砾石3)subrounded gravel,次圆砾石4)cobble and gravel strata,圆砾卵石层5)pebble,圆砾;小卵石6)quartz-pebble conglomerate,石英-圆砾岩

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