Wang Chunhong, a 67-year-old welder, measures a machinery part in Zhangjiakou, North China's Hebei Province on Monday. The welder machine he designed has helped raise production efficiency by 20 percent. China's input in research and development reached 1.34 trillion yuan ($216 billion) in 2014, accounting for 2.1 percent of the country's GDP, according to the Ministry of Science and Technology. Photo: CFP