Excessive trim, however, has the effect of reducing not only aerodynamic efficiency but also primary control travel distance in the direction the trim is applied. ( )
A.然而,过度的配平不仅减少了飞机的空气动力效能,而且减少了配平主控制舵面方向上的偏转行程。 B.然而,额外的配平不仅减少了飞机的空气动力效能,而且减少了配平应用方向上的主控制舵面的偏转行程。 C.然而,额外的配平不仅减少了飞机的空气动力效能,而且减少了配平主控制舵面方向上的偏转行程。正确答案B
