Sea butterfly: a swimming predatory Marine sea snail. They have two wing-like outgrowths (lower right) derived from their foot, which they continually flap to swim through the water.
海蝴蝶：一只正在游动的食肉性海蜗牛。它们拥有像翅膀一样的由足进化而来的侧翼(位于右下方)，并靠拍打侧翼在水中前行。
The "Joint Sea 2016" drill will run from September 12 to 19, and feature navy surface ships, submarines, fixed-wing aircraft, helicopters, marines and amphibious armored equipment.
中俄“海上联合—2016”军事演习将从9月12日持续到19日，参与演习的兵力主要包括：海军水面舰艇、潜艇、固定翼飞机、直升机、海军陆战队以及两栖装甲装备。
This paper introduced the research progress in recent years abroad, including designs of wing type for large scale fan in MW level, the key technology of materials and fan support platform on the sea.
文章介绍了国外近年来在兆瓦级大型风机翼型设计、制作材料及风机海上支撑平台关键技术的研究进展。
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