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5 破损折角塞门的失效分析受撞击而破损的机后第7位车1位折角塞门在发生事故之前是开或关,是有关方面最关注的焦点,特作较详尽的介绍。为了叙述方便,首先把折角塞门零件的某些部分的方向、名称明确如下:
Failure Analysis of the Failure of a Broken Screw Door The 7th car of a broken seat after being struck and struck by an impact is an open or closed door before the accident. It is the most concerned point of concern and a more detailed introduction is made. For the convenience of narration, first of all, the direction and name of certain parts of the corner plug parts are as follows: