Nano material performances can remarkably improve the physical properties and performances of the refractory material due to its surface effect, quantum size effect and tunnelling effect.
纳米材料由于具有表面效应、量子尺寸效应和隧道效应，以添加剂的形式加入耐火材料中，可显著提高耐火材料物理性能和使用性能。
With the allowable maximum ground settlement as target value, a dynamic optimization model is designed to draw up the strategy(technical measures) controlling the effect of tunnelling on environment.
以地表最大允许沉降值作为目标控制值，设计了一个用于制定隧道工程环境影响控制策略（施工技术措施）的动态优化模型。
With the allowable maximum ground settlement as target value, a dynamic optimization model is designed to draw up the strategy(technical measures) controlling the effect of tunnelling on environment.
以地表最大允许沉降值作为目标控制值，设计了一个用于制定隧道工程环境影响控制策略（施工技术措施）的动态优化模型。
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