The square is rotated 16 times around the center, with the result shown in Figure 1, cell F (with the simple application shown in Listing 6).

这个正方形会以中心为原点旋转16次，其结果如图1的单元格f所示(通过清单6所示的简单应用程序)。

youdao

He presented more than thirty concerts at the John F. Kennedy Center for the Performing Arts in Washington, d.c..

他曾三十多次出席在华盛顿·肯尼迪艺术表演中心举办的音乐会。

youdao

In 2010 the collection moved to the Steven F. Udvar-Hazy Center near Dulles, Virginia.

2010年，这件藏品转到弗吉尼亚杜勒斯附近的史蒂文·f·udvar - Hazy中心。

youdao

He composed it for the opening of the John F.Kennedy Center for the Performing Arts in Washington,D.C., in nineteen seventy-one.

VOA: special.2009.08.02

In nineteen eighty-four, the John F.Kennedy Center for the Performing Arts in Washington,D.C.

VOA: special.2009.11.29

You can see it at the museum's Steven F.Udvar-Hazy Center in Chantilly,Virginia.

VOA: special.2009.03.18

At the center of what looks and feels like an F-5 tornado is a powerful university, Penn State.

FORBES: The Tornado at Penn State

We are taking a closer look at the F-35 fighter jet at Lockheed Martin's Fighter Demonstration Center just outside our nation's capital, but, being in the middle of a corporate complex, there's no actual Lightning II on hand.

ENGADGET: Lockheed Martin F-35 Lightning II stealth fighter cockpit demonstrator hands-on (video)

The F-117: As the attached editorial by the director of the Center for Security Policy, Frank J.

CENTERFORSECURITYPOLICY: Center for Security Policy | FOR A CREDIBLE DEFENSE POSTURE IN THE FUTURE, INVEST IN THE B-2 TODAY