一种利用沿海水域和滩涂，养殖或栽培海产经济动物的生产活动marine aquaculture

• 那些高位虾塘都采用海水养殖。

  Those high level shrimp ponds all use marine aquaculture.

• 他的“潜艇”主要用于海水养殖等水下作业。

  His submarine is mainly used for undersea operations such as marine aquaculture.