"Traditional high-end ultrasound machines are expensive, costing millions. Rural residents in China's western regions often need to seek ultrasound examinations in higher-level county hospitals," Wu ...

CHONGQING, June 18 (Xinhua) -- In Yongchuan District of southwest China's Chongqing Municipality, a modern sericulture base is transforming the ancient legacy of silkworm farming via cutting-edge ...

用横向思维看待“枯萎技术”。