旋筒风帆

旋筒風帆

xuántǒngfēngfān

noun

Meanings

1 rotor sail
2 Flettner rotor

Characters

cylinder / tube

Examples

这艘货轮安装了旋筒风帆来节省燃油。

Zhè sōu huòlún ānzhuāngle xuántǒngfēngfān lái jiéshěng rányóu.

This cargo ship has rotor sails installed to save fuel.

旋筒风帆利用马格努斯效应推动船只。

Xuántǒngfēngfān lìyòng Mǎgénǔsī xiàoyìng tuīdòng chuánzhī.

Rotor sails use the Magnus effect to propel ships.

Tips

culture

Invented by German engineer Anton Flettner in the 1920s. The spinning vertical cylinders generate thrust from crosswind via the Magnus effect. The Chinese name is descriptive: 旋筒 (spinning cylinder) + 风帆 (wind sail).

Stroke Order

旋 xuán

筒 tǒng

风 fēng

帆 fān