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.
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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On a background of softest seafoam, with a wing-shaped fin worked in shades of fuschia, periwinkle and teal, she is a part of the mysterious, impetuous sea captured forever on canvas.