詞語：upstroke
upstroke的解釋
upstroke['ʌpstrəuk]n. 向上的一擊；書寫時向上的一筆；上行程；上行運動
upstroke的意思
upstroke 上挑的筆跡;活塞上行;上行行程;向右上挑的筆跡;upstroke twisting 上行式捻線;upstroke press 上行壓力機;上升沖程壓機;上行式平板機;上升衡程壓機;upstroke piston 上行程活塞;upstroke slope 釋義：上升坡度;
upstroke的參考例句
1.He couldn't be careful enough on that upstroke. 他揚起翅膀時，真是夠小心的了。
2.The flow fields are different for the three phase motion patterns and there are two types of leading-edge vortex motion at an earlier stage of upstroke or downstroke. 三種相位下的渦流場形態各有不同，上揮（下拍）初期前緣渦的運動主要存在兩種形態。
3.Then, every time, his left wing stalled on an upstroke, he'd roll violently left, stall his right wing recovering, and flick like fire into a wild tumbling spin to the right. 可每次都一樣，只要一舉翅膀，左翼總要失去平衡，他於是猛地向左翻轉，剛恢復平衡，右翼又失去控制，於是他像火花似地向右一閃，亂轉著直栽下來。