Chinese scientists started their 38th ocean scientific expedition on Monday, with the country's first deep-sea manned submersible Jiaolong. The mother ship, "Xiangyanghong 09", left east China's Qingdao carrying the sub and more than 150 personnel for a 124-day trip, the longest for Jiaolong. The researchers will carry out surveys in the northwest Indian Ocean, the South China Sea, Yap Trench and the Mariana Trench in the west Pacific Ocean. [Xinhua] |