deltas background

deltas

/ˈdeltəz/

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noun

德尔塔，Δ，δ

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

Examples :

"In his math notes, John wrote several deltas to represent change in values. "

在他的数学笔记中，约翰写了好几个德尔塔（Δ，δ）来表示数值的变化。

language writing

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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 environment

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noun

德尔塔

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

Examples :

"To spell out his name correctly, the student used the deltas of the ICAO alphabet. "

为了正确拼写出他的名字，这个学生使用了国际民航组织字母表中的“德尔塔”来代表字母D。

language phonetics word communication

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noun

三角形符号，德尔塔符号

Examples :

"In math class, we learned that "deltas" are often used to represent changes in values. "

在数学课上，我们学到“德尔塔符号”（Δ）通常用来表示数值的变化。

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noun

细微差别，微小差异。

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点。

outcome math science

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noun

差异，差量，增量

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，系统只会保存文件的差异部分 (chāyì bùfen)。

technology computing internet technical

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noun

变化量，差值

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，火箭学和轨道力学中使用的术语）

math science amount statistics

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noun

圆心角

The angle subtended at the center of a circular arc.

Examples :

"Example Sentence: "To accurately measure the pizza slices, the math student calculated the deltas formed by each arc of crust." "

为了准确测量披萨饼的每一块，这位数学专业的学生计算了每段饼皮弧线所对应的圆心角。

math technical science physics degree

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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 :

"The delivery company uses deltas to transport packages through the crowded city streets because they are stable and can carry heavy loads. "

这家快递公司使用前单轮货运自行车在拥挤的城市街道运送包裹，因为它们很稳，而且能载重。

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; 三角形连接电流

system electronics energy technology electric technical physics machine

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noun

期权 Delta，对冲比率

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

Examples :

"A trader carefully watches the deltas of their options portfolio to understand how much profit or loss to expect if the underlying stock price moves by $1. "

交易员会仔细观察他们的期权投资组合的对冲比率 (期权 Delta)，以了解标的股票价格每变动 1 美元，他们预计会获得或损失多少利润。

business finance asset value statistics

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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 geologist analyzed the deltas of carbon-13 isotopes in the ancient sediment to determine the past climate. "

地质学家分析了古代沉积物中碳-13同位素的δ值（同位素偏差），以确定过去的氣候。

chemistry geology physics science

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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 :

"In the Space Force, the newly established deltas are focused on specific mission areas like space surveillance and satellite communication. "

在太空军中，新成立的三角洲部队专注于特定的任务领域，例如太空监视和卫星通信。

military space organization government unit