But the diving technology is advancing so much that it's becoming possible to explore quite deep wrecks.

但潜水技术取得了巨大的进步，这使得探索深海沉船成为可能。

He says saturation diving technology enables human beings to withstand high water pressure by saturating human tissue with inert gas.

他表示，“饱和潜水”技术，让潜水员体内各组织体液中所溶解的惰性气体达到完全饱和的程度，来适应高压环境。

China is now working to develop saturation diving technology that would work at a depth of 500 meters under the sea.

目前中国正在正在进一步研发500米饱和潜水作业技术。