The transplantation of articular cartilage allograft after gradient cooling and cryopreservation is a therapy for repairing large articular cartilage defect.
经梯度降温、冷冻保存的同种关节软骨移植可作为修复大面积关节软骨缺损的一种治疗方法。
To fuzzy assess to defect (s) of pressure vessel, it is necessary that security area, that is structure by the currency failure assessment curve, is divided on gradient.
为了对压力容器的缺陷进行模糊评定，需要为通用失效评定曲线组成的安全评定区域进行梯度分区。
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