运用运动生物力学的基本原理，结合田径运动理论知识，对短跑的动作周期划分为“后蹬”、“着地缓冲”等问题进行了剖析。
Based on the biomechanics basics and the knowledge of the track and field, the essay argued on the sprint skill periods and the term of "leg drive", "the buffer after landing", and so on.
对各种可能的可持续关键性能指标进行了鉴别，并对不同的建筑生命周期的性能评估基本原则进行了解释。
Possible sustainability key performance indicators are identified and the basic principles for assessing performance along the life cycle of buildings are explained.
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