As a kind of complete orthogonal polynomial system, U system has many good properties such as orthogonality and convergence.

作为一种可选定次数的完备正交多项式系统，U系统所定义的矩具有标准正交性、收敛性等优良性质。

youdao

youdao

A focus on fulfillment also strikes me as increasingly necessary - particularly from the perspective of curing the ills of the U. S. educational system.

在自我实现上的集中研究同样也使我感到震惊，因为这些已经越来越重要，特别是从治疗美国教育体系的弊病方面来说。

youdao

U.S.officials say the system is needed to defend Europe and the United States against potential threats from countries such as Iran.

VOA: standard.2009.07.15

The U.S. was practically the last country to copy this system because, in the 1930s, because it didn't sound American.

美国几乎算是最后一个效仿此体系的国家,因为在上世纪三十年代。

耶鲁公开课 - 金融市场课程节选

There developed, in the U.S. In recent years, something called the Shadow Banking System.

美国近年来出现了,一些叫做影子银行系统的组织

耶鲁公开课 - 金融市场课程节选

In other words: get ready for yet another Wii U system update.

ENGADGET: Editor's Letter: Welcome to May

The high-definition Wii U system is available in two versions in the Americas, and each comes with a touch-screen Wii U GamePad controller.

ENGADGET: These are the 23 games launching with the Wii U on November 18

Nintendo has announced, alongside the many other games coming to its next-gen Wii U system, that it will be bringing Bayonetta 2 to the console as a Nintendo exclusive.

FORBES: Connect