中国为海军建造核反应堆测试版本 China has built a land-based test version of a nuclear reactor for a large warship.

美国新型喷气式飞机在首次飞行测试中突破音障 An experimental aircraft developed by a private American company broke the sound barrier during a recent flight test.

日本丰田建造了一座类似城市的中心来测试机器人和人工智能 Japanese automaker Toyota says it is building a research center in a city-like setting to test robotics, artificial intelligence (AI) and autonomous vehicle technologies.