This aerial photo taken on Nov. 30, 2023 shows a drilling site of Hongde oilfield in Huanxian County of northwest China\’s Gansu Province. Changqing Oilfield, a branch of PetroChina, has discovered a l
Enjoy life, Inspiring work
Enjoy life, Inspiring work
This aerial photo taken on Nov. 30, 2023 shows a drilling site of Hongde oilfield in Huanxian County of northwest China\’s Gansu Province. Changqing Oilfield, a branch of PetroChina, has discovered a l