常見例句雙語例句Before separation, RLV is thrust by the engines in the roll booster.在上升飛行段軌道器和助推器分離前，助推器發(fā)動機提供上升總動力；It is an important roll booster for Hefei economic circle to effectively carry on industrial transfer.有效承接國內外產業(yè)轉移是合肥經濟圈提升區(qū)域競爭力的重要助推器。In short, Descartes' method of general doubt has been the activator and roll booster for the development of skepticism.可以說， 笛卡爾的普遍懷疑方法成為了懷疑論發(fā)展的催化劑和助推器。 返回 roll booster