A team from Hunan University in central China has collaboratively developed an intelligent operating system for tunnel boring ...

Wang, the world No.46, is China's highest-ranked player in Melbourne after Zheng Qinwen, a former Australian Open finalist, withdrew ahead of the tournament. She has lived up to top billing on the ...

俄罗斯在北极最具体的优先事项是“北方海航道”（NSR），这是一条沿俄罗斯北极海岸线连接欧亚北极与太平洋的航运走廊。格陵兰岛并不在此航道上，这直接降低了其成为俄罗斯核心“航运战利品”的可能性。