The article introduces the general character of soft soil roadbed and the treatment scheme of sand cushion and plastic drain board.
介绍了软土路基的共性，砂垫层、塑料排水板处理方案。
This paper discusses the character of the vertical dynamic compression of the corrugated board cushion and the plane dynamic compression of the corrugated board cushion.
介绍了瓦楞纸板衬垫垂直方向和平面方向的动态压缩特性。
The results showed that the new type of corrugated cardboard box was better than the gray paper board box in cushion performance and wear resistance.
结果标明，新型瓦楞纸板囊匣的缓冲防震性能和抗磨损性能明显优于传统灰纸板囊匣。
Huge air inflated toy, rubber dinghy, air inflated cushion, automotive and motorbike seating cushion, sun-shading board, side board etc.
大型充气玩具、水上橡皮艇、充气床垫、汽车摩托车坐垫、遮阳板、侧门板等。
Huge air inflated toy, rubber dinghy, air inflated cushion, automotive and motorbike seating cushion, sun-shading board, side board etc.
大型充气玩具、水上橡皮艇、充气床垫、汽车摩托车坐垫、遮阳板、侧门板等。
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