The airflow similar to jet flow blends with in-cylinder gas from circumference. The airflow jostles exhaust gas out of cylinder in a way similar to encirclement. The former is similar to “perfect mixing”,the latter is similar to “perfect displacement”.
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Against to Direct Displacement-based Seismic design, this paper, based on previous research achievements, manages to solve two problems, and it will make this new design method more perfect.
本文在以往基于位移的抗震设计研究基础上，着力解决直接基于位移的抗震设计中的两个问题，以使这种新的抗震设计方法更加完善。
But the method of its design analysis is not perfect yet, and the study on its reliability, deformation and displacement is also very poor.
但目前土钉支护结构的设计分析方法仍不够完善，对其可靠性、变形位移计算的研究也很不足。
Summarized the influence law of seismic performance of the tunnel under the form of section from displacement and internal force, and proposed the most perfect form of section on the tunnel.
从位移和内力的角度，归纳出断面形式对区间隧道抗震性能的影响规律，提出地铁区间隧道断面形式的最优选择。
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