In the ribs of control group (non-fractured part), only mesenchymal cells of periosteum and skeletal muscle fiber showed nerve growth factor stained lightly.
对照组(非骨折部位)的肋骨，只有骨膜的间质细胞及骨骼肌纤维显示神经生长因子轻度着色。
Influence factor and control measure on the preparation of molecular template polymer by non-covalence method were reviewed concisely.
扼要概述了非共价法制备分子模板聚合物的影响因素及控制措施。
In precision machine tool servo control system, the existence of non-linear backlash element is the main factor that affects the performance of the control system.
超精密机床伺服系统中，间隙非线性环节是影响系统性能的主要原因。
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