Radioactive steam will still bubble up to the top of the water in the containment vessel, but will be harder to vent as the systems for doing so in an orderly manner are now underwater.

The system would consist of a minehunter vessel, two USVs and autonomous underwater vehicles.

In 2007, this Co. newly developed full automatic underwater electric mowing vessel, which is already put into use in Jiyanghu Lake in Zhangjiagang city.