结果6例X线平片有阳性征象，表现为与邻近关节平行或与主要骨小梁垂直的骨折线或线状硬化。
Results 6 cases of pelvic insufficiency fracture had abnormal X ray findings of fracture lines and linear scleroses oriented parallel to the adjacent joint or perpendicular to the main trabeculae.
攻击机飞向目标区的方式有两种，即攻击机飞向目标区的速度方向与线状目标的长边成一固定角和平行于该长边。
The velocity of the attacker flying to objective zone either is parallel to or has a fixed angler with longer side of linear objective.
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