frame slip meaning in English

肋骨与壳板间的衬垫
帧滑动

These accidents often happen that the grid frame slips out of the track during sliding construction accumulating one by one in high altitude . the paper take the sliding construction accumulating one by one of the grid frame of taigu airplane ' s maintenances system in xiamen as a example to introduce the experiences in practice program in the three general existed problems and then take a research in the them to improve the method of sliding construction and to make it more efficiency
针对逐条积累滑移法施工普遍存在的容易造成杆件失稳、超高脚手架设计、容易出现脱轨事故的问题，以厦门太古飞机维修机库网架逐条积累滑移法施工为例，介绍实际工程的实践经验，研究其中普遍存在的问题，使逐条积累滑移法得到比较合理的完善，充分发挥逐条积累滑移法的技术经济效益。