deltas造句

Tidal channels, deltas, and washover fans are characteristically associated with offshore bars.
潮汐水道、三角洲和冲刷扇典型地与滨外砂洲伴生在一起.

Many deltas are triangular in shape.
很多三角洲是三角形的.

Patterns of deltas are ephemeral.
三角洲式样的变化是很快的.