所述的弹性支承可为螺旋弹簧、板弹簧或弹性垫层；
The elastic support can be a spiral spring, a plate spring or an elastic cushion;
其次，从弹性垫层材料的力学特性角度出发，建立组合圆筒裱糊装配结构的力学模型。
Secondly, the structure's mechanical model that based on the elastic material mechanical characteristic and a certain enclasped state and enclasped thinking of multi-layers' shell is established.
对城市铁路轨道道碴垫层研制从高分子弹性材料选择、模具设计加工及生产工艺三方面进行了分析与评价。
The selection of macromolecular elastic material, model design and production, and the producing technics of ballast padding plate for urban rail are analyzed and evaluated.
并对垫层敷设范围、垫层厚度和弹性模量等设计关键参数进行了优化，并把“垫层弹性模量与垫层厚度之比”作为参考指标进行设计。
It is suggested that the ratio of thickness to elastic modulus can be used as an important parameter in the design of cushion layer.
本发明 形成的垫层砂浆具有强度高，弹性好的优点。
The bedding mortar made through the grouting method has the advantages of high strength and excellent elasticity.
并从实际出发，考虑砧下垫层的弹性作用及垫层和土壤的阻尼作用，建立了锻锤振动系统的双自由度有阻尼振动力学模型。
In the last part of this paragraph, a calculation model for forging hammer foundation vibration system with dual-freedom is presented.
通常情况下，骨头的末端是被一层类似可以防震的、有弹性的软骨覆盖的垫层。
Normally the ends of bones are covered with a shock-absorber-like pad of springy cartilage that helps bone ends move more easily.
通常情况下，骨头的末端是被一层类似可以防震的、有弹性的软骨覆盖的垫层。
Normally the ends of bones are covered with a shock-absorber-like pad of springy cartilage that helps bone ends move more easily.
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