1. Cao J L, Liu X D, Zhang F S, Li Q, Zhang D S, Wang H Y. 2016. Application of DTA-6000 acoustic deep-tow system to cobalt-rich crust investigation (in Chinese). Mar Geol Quat Geol, 36: 173–181
2. Cui W C, Liu F, Hu Z, Zhu M, Guo W, Liu C G. 2012. 7000 m sea trials test of the deep manned submersible “Jiaolong” (in Chinese). J Ship Mech, 16: 1131–1143
3. Cui W C, Liu F, Hu Z, Zhu M, Guo W, Wang C S. 2011. 5000 m sea trials test of the deep manned submersible “Jiaolong” (in Chinese). Shipbuilding of China, 52: 1–14
4. Jin X L. 2007. The development of research in marine geophysics and acoustic technology for submarine exploration (in Chinese). Prog Geophys, 22: 1243–1249
5. Kohnen W. 2013. Review of deep ocean manned submersible activity in 2013. Mar Technol Soc J, 47: 56–68