ply-drop off 层缩区
ply drop-off 削层
drop ply 空层
ply drop
厚度下降
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The influences of the repairing parameters, including the ply drop off of patch, the adhesive thickness and the structural curvature, are also studied in detail for repair by replacing damaged parts.
分析了挖补修理中，补片的铺层阶差值、胶层的厚度及结构曲率的大小对胶接修理效果的影响。
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