The output curve of a product is generally S-shape curve during its economic life period.

个别产品的产值(产量)曲线在其经济寿命周期里一般是一条S形曲线。

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She said the tree – which re-rooted itself in 1820 after being blown down in a storm and grew back in an 'inverted S-shape' – was already difficult to get close to because of its shape.

莫伊尼汉表示，这棵苹果树曾在1820年被暴风刮倒过，随后重新生长起来，长成了倒“S”形，这种形状本来已让人难以靠近。

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There was a red mark on his back in the shape of the letter S.

他的背上有一个蛇形的红斑。

《新英汉大辞典》

Dubai World's debts grew from projects initiated during Dubai's property boom, including man-made islands in the shape of palm trees and the world's tallest building.

VOA: standard.2009.12.02

The thousand liveried angels - begin to cast their special beam on the virgin's outward shape -- that's her body, the unpolluted temple that houses her virginal mind.

一千个穿着衣服的天使,开始在处女的身体上投射他们神奇的光束-,那就是她的身体，那个装着无暇心灵的未受污染的殿堂。

耶鲁公开课 - 弥尔顿课程节选

So if we go ahead and name this bond, what we're going to name it is sigma, - because that's the -- basically the shape of the bond or that's how our bond is coming together.

所以如果我们继续并且命名这一键，就是我们要命名的这个键，因为这是-,基本上键的形状,或者这就是键是怎么到一起的。

麻省理工公开课 - 化学原理课程节选

The concept (which other researchers proposed in the 1960s) holds that tumor growth generally follows an S-shape curve.

FORBES: Magazine Article

After the S-shape curve of the country from north to south, Artisans of Leisure's private, custom Vietnam for Foodies tours take in cultural and gustatory attractions along the way.

CNN: Exotic culinary tours around the world

Profits owe their V-shape in great part to employment's L-shape.

ECONOMIST: Corporate profits in America