对生产商来说,加衬垫是一项不得不干的工作。考虑到因其耗用的材料,劳力和增加了的运输成本,加衬垫是昂贵的。但是货物在从甲地运到乙地的过程中往往发生破损,原因不是由于搬运不当,便是由于车子的震动,而加衬垫可防止这类问题的发生。生产商面临的问题是如何为其产品选择衬垫材料。也许某种材料与其他材料相比成本较低,但如果它不能起到所要求的缓冲作 For manufacturers, lining up is a must-do job. Padding is costly given the material used, labor, and increased shipping costs. However, the goods often break down during transport from station A to station B. The reason for this is not due to improper handling, but also because of the vibration of the vehicle, padding can prevent such problems. The question for manufacturers is how to choose a cushioning material for their products. Maybe a material is cheaper than other materials, but if it does not work the required cushioning