Episode Details

An experimental aircraft developed by a private American company broke the sound barrier during a recent flight test. 

一家美国私人公司开发的实验飞机在最近的飞行测试中打破了声音障碍。

California-based company Boom Supersonic built the plane, named XB-1. The company said the aircraft reached a speed of Mach 1.05 during a test on January 28. The test flight operated from the Mojave Air & Space Port in Mojave, California. 

总部位于加利福尼亚的公司Boom Supersonic建造了该飞机，名为XB-1。该公司表示，这架飞机在1月28日的测试中达到了1.05马赫的速度。测试飞行从加利福尼亚州莫哈韦的莫哈韦空气和太空港口运行。 

Any speed greater than Mach 1.0 breaks the sound barrier and is considered supersonic. The American space agency NASA explains that at sea level, the speed of sound is estimated to be about 1,236 kilometers per hour. 

大于1.0马赫的任何速度都会打破声音屏障，被认为是超音速。美国航天局NASA解释说，在海平面上，估计声音速度约为每小时1,236公里。 

In a statement, Boom Supersonic said the XB-1 demonstrator aircraft climbed to more than 35,000 feet before reaching Mach 1.0. It recorded the speed within 11 minutes of taking off. The company also released a video feed of the supersonic test flight. 

Boom Supersonic在一份声明中说，XB-1示威飞机在达到1.0马赫之前攀升至35,000英尺以上。它在起飞的11分钟内记录了速度。该公司还发布了超音速测试飞行的视频供稿。

The company said in a press release, “Historically, supersonic aircraft have been the work of nation states, developed by militaries and governments.” But the latest flight made the XB-1 “the world’s first independently developed supersonic jet” to break the sound barrier, Boom Supersonic said. 

该公司在新闻稿中表示：“从历史上看，超音速飞机一直是由军队和政府发展的民族国家的工作。” Boom Supersonic说，但是最新的航班使XB-1“世界上第一个独立开发的超音速喷气机”打破了声音障碍。 

The company’s founder and chief executive officer, Blake Scholl, said, “XB-1’s supersonic flight demonstrates that the technology for passenger supersonic flight has arrived.” 

该公司的创始人兼首席执行官布雷克·肖尔（Blak