And seal material and seal cushion structural design are the foundations that the seal technology is used on the engine.
而密封材料和密封垫结构设计是密封技术在发动机上应用的基础。
Therefore, the study design does not rely on a kind of cushion, can be embedded with the upper part of grass-roots associated with a new concrete waterproofing material, is the best choice.
故此，研究并设计一种不依赖于垫层，能够与上部基层混凝土相嵌联的新型防水材料，就成为最佳选择。
The cushion design software was developed to get the most economic material, shape size and structure.
从而开发软件以求得最经济的缓冲衬垫，并得到其外形尺寸和结构。
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