the delta of + [river]
表示河流入海处的三角洲，常用定冠词the。
The delta of the Nile is one of the most fertile regions in Egypt.
尼罗河三角洲是埃及最肥沃的地区之一。
三角洲
deltas — plural of delta
希腊字母的第四个字（Δ, δ）；三角形物体；现代希腊字母表的第四个字母 Δ, δ；新冠病毒的德尔塔变种；河流入海口处的地貌
a low triangular area of alluvial deposits where a river divides before entering a larger body of water
现代希腊字母表的第四个字母 Δ, δ
The fourth letter of the modern Greek alphabet Δ, δ.
新冠病毒的德尔塔变种
The Delta variant of COVID-19.
河流入海口处的地貌
A landform at the mouth of a river where it empties into a body of water.
符号 Δ；数量的变化,可能源于“d”代表“差异”
The symbol Δ; A change in a quantity, likely from "d" for "difference".
期权价值相对于基础资产价格的变化率
The rate of change in an option value with respect to the underlying asset's price.
表示同位素相对丰度的δ值
A value in delta notation indicating the relative abundances of isotopes.
两个文件版本之间的差异集
The set of differences between two versions of a file.
圆弧中心的夹角
The angle subtended at the center of a circular arc.
一种前轮一个后轮两个的货运自行车
A type of cargo bike that has one wheel in front and two in back.
通过依次连接三个线圈或电路形成的闭合图形,尤其在三相系统中
The closed figure produced by connecting three coils or circuits successively, end for end, especially in a three-phase system.
通常是星座中第四亮的星
a star that is usually the fourth brightest of a constellation.
由上夸克和下夸克组成的四种重子之一,具有3/2的总自旋:Δ++ (uuu), Δ+ (uud), Δ0 (udd), 或 Δ− (ddd)
one of four baryons consisting of up and down quarks with a combined spin of 3/2: Δ++ (uuu), Δ+ (uud), Δ0 (udd), or Δ− (ddd)
The Nile Delta is one of the most fertile regions in Egypt.
尼罗河三角洲是埃及最肥沃的地区之一。
用法提示：「三角洲」在此句中为名词，指河流入海口处的冲积平原。
Many birds stop at the delta during their migration.
许多鸟类在迁徙途中会在三角洲停留。
用法提示：「三角洲」是名词，指河流形成的三角形沉积地带，用作鸟类迁徙的栖息地。
The delta provides rich soil for agriculture.
三角洲为农业提供了肥沃的土壤。
用法提示：「三角洲」作名词，强调其提供肥沃土壤的地理特征。
表示河流入海处的三角洲，常用定冠词the。
The delta of the Nile is one of the most fertile regions in Egypt.
尼罗河三角洲是埃及最肥沃的地区之一。
delta可修饰名词，表示三角形或希腊字母Δ的形状。
The aircraft has a distinctive delta wing design.
这架飞机具有独特的三角翼设计。
grammar · medium
易错句子The river forms a delta at its mouth. Many large delta exist in Asia.
正确表达The river forms a delta at its mouth. Many large deltas exist in Asia.
Delta是可数名词，复数形式需加-s。中文中无复数标记，学习者容易遗漏。
grammar · medium
易错句子The sail of the boat is a delta.
正确表达The sail of the boat is a triangle.
Delta特指等边三角形或河流三角洲，而一般三角形用triangle。受中文影响，学习者可能误用delta泛指所有三角形。
delta 指三角洲或希腊字母Δ形状的物体，而 triangle 是几何学上的三角形，形状相似但含义不同
河流三角洲
The Nile River delta is one of the most fertile regions in Egypt.
尼罗河三角洲是埃及最肥沃的地区之一。
德尔塔变异株
The delta variant of the virus spread rapidly across the globe.
该病毒的德尔塔变异株在全球迅速传播。
三角洲部队
Delta Force is an elite special operations unit of the U.S. Army.
三角洲部队是美国陆军的一支精锐特种作战部队。
三角翼
The Concorde had a distinctive delta wing design.
协和式飞机具有独特的三角翼设计。
德尔塔对冲
Delta hedging is used to reduce the risk of option positions.
德尔塔对冲用于降低期权头寸的风险。
三角洲是河流在入海处形成的冲积地形
三角洲位于河流入海口
三角洲由河流携带的沉积物堆积而成
三角洲常与河口湾共存，但形态不同
多条支流汇入主流可形成三角洲
德尔塔象限
The USS Voyager was stranded in the Delta Quadrant.
联邦星舰航海家号被困在德尔塔象限。
德尔塔-7型
Obi-Wan Kenobi flew a Delta-7 starfighter.
欧比旺·克诺比驾驶过德尔塔-7型星际战斗机。
Dictionary facts from ECDICT, WIKTIONARY.