Our school and high - tech enterprises signed non - full-time master's degree joint training agreement

Leaders of xuzhou development zone visit and guide the inspection work

This is how oil is discovered

To the oil and chemical industry power leap

Cracks have been found in 2 damaged tanks caused by multiple explosions in a petrochemical company in rizhao

The quake was felt dozens of kilometers away from the mushroom cloud at the explosion site in tianjin

Windows and doors were shattered near an explosion in nanjing's yangzi petrochemical complex