deltas是什么意思？

deltas

• n. 希腊字母表中第四个字母( delta的名词复数 )，（河口的）三角洲；

例句

• Patterns of deltas are ephemeral. 三角洲式样的变化是很快的.
• Many deltas are triangular in shape. 很多三角洲是三角形的.
• 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.

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  (河流在入海处形成的)三角洲
  A delta is an area of low, flat land shaped like a triangle, where a river splits and spreads out into several branches before entering the sea.
  例句
  ...the Mississippi delta. 密西西比河三角洲