赵 ㄓㄠ ˋ zhào 忠 ㄓㄨㄥ zhōng 尧 ㄧㄠ ˊ yáo 趙 ㄓㄠ ˋ zhào 忠 ㄓㄨㄥ zhōng 堯 ㄧㄠ ˊ yáo Zhao Zhongyao (1902-1998), Chinese pioneer nuclear physicist