lay-by material
英 美
备用材料
... 不适用材料 condemned material 备用材料 alternate material; lay-by material 备用材料帐 store imprest account; store imprested account ...
All these lay a theoretical foundation for material fatigue life prediction by using ct.
为后期利用CT进行材料疲劳寿命分析奠定了理论基础。