Thailand's Prime Minister Prayut Chan-o-cha (Front) rings the bell to launch the Chinese-made new train at Hua Lamphong station in Bangkok, Thailand, Aug. 29, 2016. A new train purchased from China by State Railway of Thailand (SRT) was launched on Monday with a short trip, which is the first new train for Thailand in 20 years. [Rachen Sageamsak / Xinhua]

Photo taken on Aug. 29, 2016 shows the Chinese-made new train before its debut in Bangkok, Thailand. [Rachen Sageamsak / Xinhua]

A work personnel introduces control system of the Chinese-made new train during its first trip between Bangkok and Nakhon Pathom, Thailand, Aug. 29, 2016. [Rachen Sageamsak / Xinhua]

A train attendant walks in the Chinese-made new train during its first trip between Bangkok and Nakhon Pathom. [Rachen Sageamsak / Xinhua]

Train attendants wait at the entrance of the Chinese-made new train at Hua Lamphong station in Bangkok. [Rachen Sageamsak / Xinhua]

Photo taken on Aug. 29, 2016 shows the first-class coach of the Chinese-made new train during its first trip between Bangkok and Nakhon Pathom. [Rachen Sageamsak / Xinhua]