AIM: To study the rules of activation and distributing of enzymes in periodontium during the correction force.
目的：为了研究在正畸力作用下，力值与作用时间不同时牙周组织中各种酶活性与分布的变化规律。
Activation through use is the central approach. Multifaceted use of public space is a driving force for the development of vibrant, contemporary and adaptive neighbourhoods.
通过功能激活场所活力是规划中的核心环节，公共空间的多重属性是激发活力、体现时代感和适应周边地区的驱动力。
RD is reduction in diameter. The variation of textures is ascribed to the activation of the different slips and twins which are affected by different effective compressive force.
这取决于不同主压应力所对应开启的不同的孪生及滑移系统。
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