Oldroyd objective stress rate Oldroyd客观应力导数
Objective: To approach the change of stress shielding rate of internal fixation materials made of nano zirconia gradient compounded with hydroxyapatite.
目的：探讨氧化锆梯度复合羟基磷灰石内固定材料的应力遮挡率的变化。
Objective To investigate the value of early enteral nutrition (en) in reducing the incidence rate of stress ulceration after severe craniocerebral trauma.
目的研究重型颅脑损伤后早期肠道内营养(EN)在降低应激性溃疡发病率中的作用。
Objective To investigate the effects of exercise stress echocardiography (E-Echo)on cardiac function in patients with rate-adaptive pacemakers.
目的应用运动负荷超声心动图评价频率适应性起搏器对心功能的影响。
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