We walked across sheep's green to newnham. 我们穿过牧场去纽纳姆。
Based on the Newnham series and parallel theory of composites, deduced the calculation formulae of dielectric and piezoelectric constant of 1-3-2 type piezoelectric composite. 基于Newnham复合材料串、并联理论,推导了计算1-3-2型压电复合材料的介电常数和压电常数的公式。