For example, with the wind at an intensity that a sloop might have to double-reef the main to reduce sail area, a ketch may sail very well under just jib and mizzen.
例如，当风速在某个强度上时，单桅帆可能必须将主帆四叠起来以减少帆面积，而双桅帆则可以只用前帆和后帆来顺利航行。
DOUBLE surface - glider with upper and lower sail surfaces that enclose airframe to reduce drag and improve performance.
双翼面—滑翔机机架上下两面被翼布包裹，以减少阻力和提高性能。
It helped Shanghai sail through that relatively rough patch and rack up double-digit annual economic growth.
它帮助上海渡过了相对困难的时期，实现了两位数的经济增幅。
Aunt Polly entered in time to see him throw a few double summersets, deliver a final mighty hurrah, and sail through the open window, carrying the rest of the flower-pots with him.
波莉姨妈进来时正好看见它在连翻斤斗。 它最后哇地大叫一声，从敞开的窗户一飘而出，把余下的花瓶也带了下去。
Aunt Polly entered in time to see him throw a few double summersets, deliver a final mighty hurrah, and sail through the open window, carrying the rest of the flower-pots with him.
波莉姨妈进来时正好看见它在连翻斤斗。 它最后哇地大叫一声，从敞开的窗户一飘而出，把余下的花瓶也带了下去。
应用推荐