Do you cross yourself? Do you bow? Do you kneel? 你划十字,你弯腰,你屈膝?
One theory of this is that during the Hundred Years War between France and England, archers would cross their fingers before pulling the bow string in order to grant them good luck. 一种说法是:在法英百年战争时,弓箭手在拉弓前会交叉手指以示好运。
The kinetic cross - field streaming electromagnetic instability for transmitted ions within the Earth's bow shock front is investigated in this paper. 本文研究了地球弓激波前内透射离子动力学横场流不稳定性。