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delta

/ˈdɛltə/

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noun

德尔塔 (Dé'ěrtǎ), Δ, δ.

The fourth letter of the modern Greek alphabet Δ, δ.

Examples :

"In math class today, we learned that the Greek letter delta is represented by the symbol Δ. "

今天数学课上，我们学到希腊字母德尔塔(Dé'ěrtǎ) 用符号 Δ 表示。

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noun

三角洲，冲积扇。

A landform at the mouth of a river where it empties into a body of water.

Examples :

"Nile Delta"

尼罗河三角洲

geography geology environment nature

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noun

代号D，三角。

The letter D in the ICAO spelling alphabet, which assigns words to letters of the alphabet.

Examples :

"When introducing himself, the new student used the delta in the ICAO spelling alphabet to spell his last name. "

新同学在自我介绍的时候，用国际民航组织拼读字母表里的“三角”来拼写他的姓，也就是字母D的代号。

phonetics word language communication

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noun

三角符號，Δ 符號

Examples :

"The delta symbol, Δ, represents the change in temperature. "

三角符號 Δ 用來表示溫度的變化。

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noun

细微差别，小差异

A small but noticeable effect. Compare epsilon.

Examples :

"This will slow the main code path down, but only by delta."

这会降低主代码的运行速度，但只是稍微慢了一点儿。(Zhè huì jiàngdī zhǔ dàimǎ de yùnxíng sùdù, dàn zhǐshì shāowēi màn le yīdiǎnr.)

outcome amount degree

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noun

差异，差量。

The set of differences between two versions of a file.

Examples :

"When you update the file, the system will only save the deltas."

当你更新文件时，系统只会保存文件差异部分。

computing technology technical

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noun

变化量，差量.

A change in a quantity, likely from "d" for "difference".

Examples :

"ΔV - "delta vee"(change in velocity, used in rocketry and orbital mechanics)"

ΔV - “delta vee”（速度变化量，常用于火箭学和轨道力学中）

math science statistics amount number

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noun

圆心角

The angle subtended at the center of a circular arc.

Examples :

"The delta of the clock's hands was 90 degrees as the minute hand pointed to twelve. "

当分针指向十二时，时钟指针的圆心角是 90 度。

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noun

倒三轮货运自行车, 前单轮货运自行车

A type of cargo bike that has one wheel in front and two in back.

Examples :

"My brother bought a new delta cargo bike to carry all the groceries home from the market. "

我哥哥买了一辆新的前单轮货运自行车，用来把所有从市场买的食物杂货运回家。

vehicle machine

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noun

三角接线，三角形连接.

The closed figure produced by connecting three coils or circuits successively, end for end, especially in a three-phase system.

Examples :

"delta winding; delta connection; delta current"

三角接线绕组；三角形连接；三角接线电流

system electronics electric energy technology

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noun

对冲值，德尔塔。

The rate of change in an option value with respect to the underlying asset's price.

Examples :

"The delta of the stock option is 0.75, meaning that for every dollar the stock price increases, the option value is expected to increase by 75 cents. "

这个股票期权的对冲值（德尔塔）是0.75，这意味着股票价格每上涨一美元，期权价值预计会上涨75美分。

business finance value asset

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noun

δ值，同位素偏差

A value in delta notation indicating the relative abundances of isotopes.

Examples :

"The delta values for carbon isotopes in the soil samples show a significant difference between the two locations. "

土壤样本中碳同位素的δ值显示，两个地点之间存在显著差异。

chemistry physics element

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noun

三角洲部队，特遣队

(U.S. Space Force) A military unit, nominally headed by a colonel, equivalent to a USAF operations wing, or an army regiment.

Examples :

"The delta squadron of the Space Force is responsible for monitoring satellite communications. "

太空军的三角洲部队负责监控卫星通讯。

military government organization unit space