ageing coefficient造句

• Based on the linear creep superposition principle , admiting average loading age coefficient and average time - lasting coefficient , adopting creep and shrinkage calcultion in aci code , a simplified method of creep and shrinkage analysis in reinforced concrete member bearing multi - times axial forces is presented
  摘要根据线性徐变的迭加原理，引入平均龄期影响系数和平均持荷影响系数，利用aci规范中的徐变和收缩计算公式，推导了钢筋混凝土轴压构件分批加载时收缩徐变分析的简化计算方法。
• Using the method of principal component analysis , the principal component is extracted from twelve growth grade of foot hones , and the regression of the principal component is followed , then the regression of partitoning age group is conducted , finally table of the bone - age coefficient for determination of person ' s age is obtained
  摘要运用主成分分析法提取了十二种足骨发育等级的主分量，接着进行主分量回归，然后再进行分年龄段回归，可得用于年龄鉴定的骨龄系数表。