Sun Lingling was born in an ordinary rural family in Xinji,Hebei Province in May 1983.She joined the Communist Party of China in December 2005 and has obtained the dual technical titles of engineer and senior technician.In July 2006,Sun Lingling went to Golmud in Qinghai Province and worked as a laboratory technician in Golmud Oil Depot directly after graduation from Chengde Petroleum College of Hebei.She felt unable to breathe the moment she stepped on the godforsaken Gobi desert;her skin and throat were dry,and she could not see anything green within sight.However,what made her happy was that she could do her favourite job of applied chemistry there.She began her career as a laboratory technician.With the Company of test tubes,instruments and oil samples,fourteen years passed in a blink of an eye.