With elongated treated time and increased thickness of coating, loose coating begins to appear on the coating exterior, at last the thickness can reach 90% of total thickness.
随着处理时间的延长及膜层的增厚，其外侧开始出现疏松层，最终可达到膜层总厚度的90 %左右。
2
All holes, slots, edges and corners should be free of loose burrs and slivers. The allowable height of a burr cannot exceed five percent (5%) of the material thickness.
所有孔，缝，边和角必须没有毛刺和锐边。允许的毛刺的高度不能超过材料厚度的5%。
3
At last thesis introduce the control mode of loose circle thickness. Thesis has use for reference mine supporting.