Elasticity of substitution — a measure of the degree to which two factor inputs complement or substitute for one another in production.
弹性代换——产品中的两个因素投入产品中相互补充或是代替的衡量度数。
Elastic mat: the degree of elasticity and slipperiness of the mat must be approved by the WTF before the competition.
力波垫：垫子的弹性以及滑度必须在赛前经由世界跆拳道联盟认证通过。
Although apparently rigid bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact.
骨头看起来是脆硬的，但它也有一定的弹性，使得骨骼能够承受相称的打击。
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