. . "牛振华" . "Niu zhen hua" . "牛振华" . "zhen" . . "zhen Niu zhen hua" . "Zhenghua"@en . "牛振華" . "Niu"@en . . "Zhenghua Niu"@en . "牛振華" . . "牛振华" . "牛振華" . "牛振华" .