英语说文解字descent

descent xinchi外语

descent英 [dɪˈsent] 美 [dɪˈsent]

n. 下降，降落；斜坡，斜面；出身，血统；堕落，沦落；突然到访，突袭

[ 复数 descents ]

短语

Gradient descent 梯度下降法 ; [数] 梯度下降 ; 梯度下降算法

descent stage 下降段 ; 下降阶段 ; 降落段

The Descent 黑暗侵袭 ; 深入绝地 ; 黑暗侵袭两部

bilateral descent 双系继嗣 ; 双亲遗传 ; 双边世系

Coordinate descent 坐标下降法 ; 坐标下降 ; 下降法

recursive descent parser 递归下降解析器 ; 翻译 ; 递归下降分析程序英语 ; [计] 递归下降分析程序

Steepest descent 最速下降法 ; 最陡下降 ; [数] [数] 最速下降

Chinese descent 中国血统

Stochastic gradient descent 随机梯度下降 ; 随机梯度下降法

柯林斯英汉双解大词典

descent /dɪˈsɛnt/ CET6 TEM4

1. N-VAR A descent is a movement from a higher to a lower level or position. 下降

例：Sixteen of the youngsters set off for help, but during the descent three collapsed in the cold and rain.

那些年轻人中有16人出发寻求帮助，但在下山过程中有3人在寒冷和阴雨中倒下了。

2. N-COUNT A descent is a surface that slopes downward, for example, the side of a steep hill. 下坡

例：On the descents, cyclists spin past cars, freewheeling downhill at tremendous speed.

在下坡道上，自行车手们飞快地掠过汽车，靠惯性极速冲下山去。

3. N-SING When you want to emphasize that a situation becomes very bad, you can talk about someone's or something's descent into that situation. 沉沦; 没落 [强调]

例：...his swift descent from respected academic to struggling small businessman.

…他从受人尊敬的学者到挣扎求存的小商人的迅速沦落。

4. N-UNCOUNT You use descent to talk about a person's family background, for example, their nationality or social status. 出身 [正式]

例：All the contributors were of African descent.

所有捐助者都是非洲血统。

词组短语同近义词同根词

gradient descent 梯度下降

descent method n. 下降法

chinese descent 中国血统；炎黄子孙

steepest descent method 最速下降法；最陡下降法

双语例句原声例句权威例句

All the contributors were of African descent.

所有捐助者都是非洲血统。

Britain has always been the principal source—ninety percent of Australians are of British descent, and Britain has provided one million migrants since the Second World War.

英国一直是澳大利亚移民的主要来源国——90%的澳大利亚人是英国后裔，自二战以来，英国已经提供了100万移民。

There is a gradual descent to the sea.

有一片斜坡缓缓伸延到海边。

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