Technicians from China's CSR Corporation instructs the Turkish driver after the first stainless-steel metro train made in China officially put into operation on M3 line of the metro system in Ankara, Turkey, on Feb. 12, 2014. Turksih President Abdullah Gul and Turkish Prime Minister Recep Tayyip Erdogan attended the launching ceremony and board the first metro train to celebrate the operation of the metro line. (Xinhua/Li Ming) |