V2EX delta

Delta

释义 Definition

delta(名词)常指“三角洲”:河流在入海或入湖处因泥沙沉积形成的三角形(或扇形)地貌。也常用于数学/科学中表示“变化量(Δ)”。(另有其他用法,如希腊字母名称等。)

发音 Pronunciation

/delt/

例句 Examples

The Nile delta is famous for its fertile farmland.
尼罗河三角洲以肥沃的农田闻名。

As the river slows near the coast, it deposits sediment and gradually builds a delta that reshapes the shoreline.
当河流在海岸附近减速时,它会沉积泥沙,并逐渐形成三角洲,从而重塑海岸线。

词源 Etymology

源自希腊语 delta(Δ),为希腊字母“Δ”的名称。由于许多三角洲的形状近似三角形,人们借用“Δ”的形状来命名这种地貌;后来在数学与科学中也常用 Δ 表示“变化、差值”。

相关词 Related Words

文学作品 Literary Works

  • Heart of Darkness(Joseph Conrad):常见“river”“delta”等地理描写语境中出现相关表达(不同版本用词可能略有差异)。
  • The End of the Affair(Graham Greene):涉及地理与方位描写的段落中可见“delta”等词的使用(以具体版本为准)。
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