聚缩 meaning in English

pmma polyoxymethylene
polycondensation

The condensation was carried out with an excess of glycol or of dicarboxylic acid .
聚缩反应是在二元醇或是在元羧酸过量下进行的。
Polyacetale hollow rods of circular cross - section ; dimensions
聚缩醛树脂圆截面空心棒.尺寸
Polysulfone and polyacetal - coated wire
聚砜及聚缩醛漆包线
Pinch off effect
聚缩效应
For the purpose of improving calculation precision and reduce workload , viscoelastic similar shape element is generated in the numerical research about crack problem , using the characteristic of similar stiffness matrix between element near crack tip
在裂纹问题的数值研究中,为了提高计算精度、减轻计算工作量,构造了粘弹性相似界面单元,利用裂尖附近相似单元刚度阵相似的特点,采用聚缩法形成裂尖超级单元。