中泰越三国合作发展航空运输据泰报报道，中国、泰国和越南三国的航空机构目前正在商讨三国合作扩大航空客货运输及开辟新航线问题。中国方面提出开辟一条昆明—西双版纳—清莱—曼谷航线，泰国现在已有包机在曼谷—清莱—昆明航线上飞行。中国还准备开放成都市。泰国对中... China, Thailand and Vietnam Cooperate to Develop Air Transport According to the Thai Newspaper, aviation agencies in China, Thailand and Vietnam are currently discussing the cooperation among the three countries in expanding air passenger and cargo transportation and opening up new routes. The Chinese side proposed to open a route from Kunming to Xishuangbanna to Chiang Rai and Bangkok. Thailand now has charter flights on the Bangkok-Chiang Rai-Kunming route. China is also preparing to open Chengdu. Thai pair...