1) Age of Sails
2) Zhongguo gudai fengfan
3) Hoist your sail when the wind is fair.
4) As the wind blows, you must set your sail.
5) sail [英][seɪl] [美][sel]
When sailing at constant speeds, the influences of auxiliary sails to the sailing performances of the ship are studied.
In this paper, economical properties of 135-horse power vessel with sail are analyzed.
海面多风 ,4～ 5级的风更多 ,而 4～ 5级风恰恰适用于风帆。
The aerodynamic performance of a typical sail in a twisted wind was numerically studied by solving Navier-Stokes equations,and the effects of various factors on the sail s aerodynamic performance were discussed.
6) prevailing vogue
Discussion is made of the relationship between the pottery, the social life and prevailing vogue in Tang and Song Dynasty in four respects.