pullback background

pullback

/ˈpʊlˌbæk/ /ˈpʊlˌbæk/

Illustration pullback - Image 1

noun

回调，撤退.

The act or result of pulling back; a withdrawal.

Examples :

"After a week of gains, the stock market experienced a slight pullback. "

股市在经历了一周的上涨后，出现了一次小幅回调。

action business military

Illustration pullback - Image 1

noun

后拉，拉远。

The act of drawing a camera back to broaden the visible scene.

Examples :

"The director called for a pullback so the audience could see the whole classroom during the important scene. "

导演要求后拉镜头，这样观众就能在重要场景中看到整个教室。

media technology communication

Illustration pullback - Image 1

noun

退却，阻碍，障碍。

That which holds back, or causes to recede; a drawback; a hindrance.

Examples :

"The pullback in funding for the school library meant fewer new books could be purchased. "

学校图书馆经费的削减导致能购买的新书数量减少了。

outcome negative situation business

Illustration pullback - Image 1

noun

窗钩，拉钩

The iron hook fixed to a casement to pull it shut, or to hold it partly open at a fixed point.

Examples :

"The window wouldn't stay open by itself, so I used the pullback to hold it ajar. "

窗户自己撑不住，所以我用窗钩把它半开着固定住了。

architecture building device

Illustration pullback - Image 1

noun

回调，回落

A reduction in the price of a financial instrument after reaching a peak

Examples :

"After the stock's rapid increase, we saw a slight pullback in price yesterday. "

这支股票在快速上涨之后，昨天价格出现了一点回调。

business finance economy

Illustration pullback - Image 1

noun

回传，拉回传球

An attacking pass from the wing into a position further from the attacking goal line.

Examples :

"The winger delivered a perfect pullback to the penalty spot, setting up an easy goal for the striker. "

边锋精准地将球回传到点球点附近，为前锋创造了一个轻松的得分机会。

sport action position

Illustration pullback - Image 1

noun

衬裙撑，裙撑

A device for making a woman's gown hang close and straight in front.

Examples :

"The dressmaker carefully adjusted the pullback inside the gown to ensure it draped elegantly without any bunching. "

裁缝小心地调整了裙子里的衬裙撑，以确保裙子优雅地垂坠下来，没有任何褶皱。

wear style appearance device

Illustration pullback - Image 1

noun

拉回, 回拉。

The map between cotangent bundles of manifolds corresponding to a smooth map between smooth manifolds, which at each point is the dual map to the corresponding pushforward.

Examples :

"The pullback of a function's gradient transforms how the gradient changes with respect to a change of coordinates. "

一个函数的梯度的拉回变换了梯度如何随着坐标变化而变化。

Illustration pullback - Image 1

noun

拉回，回拉

The limit of a cospan: a Cartesian square or “pullback square”.

Examples :

"The diagram illustrating how related students choose the same elective course can be visualized as a pullback, showing the most specific way two selections lead to a common class. "

说明相关学生如何选择相同选修课的图表可以被看作是一个拉回，它展示了两种选择如何以最明确的方式汇集到一个共同的课堂。

Illustration pullback - Image 1

noun

拉回, 回拉

Within a Cartesian square (which has a pair of divergent morphisms and a pair of convergent morphisms) the divergent morphism which is directly opposite to a given one of the convergent morphisms, said to be “along” the convergent morphism which is between that pair of opposite morphisms. (The pullback is said to be “of” the given morphism.)

Examples :

"In the Cartesian square illustrating family relationships, the morphism representing "child of mother" has a pullback "father of child" along the "child of father" morphism. "

在表示家庭关系的笛卡尔正方形中，表示“母亲的孩子”的态射沿着“父亲的孩子”的态射有一个拉回，即“孩子的父亲”。