本文对碱激胶凝材料与水-水泥体系的化学收缩或膨胀进行了试验研究，其中以水-水泥体系为对比样。
Test investigation on the chemical shrinkage or expansion of alkali-activated cementing materials and water-cement were carried out in this paper, in which water-cement was as control sample.
通过采用真空烧结和氢气气氛烧结、改变烧结升温速率和烧结温度，对比了烧结件的烧结质量和烧结收缩等情况。
The sintering quality and shrinkage of the sintering parts were compared under vacuum or hydrogen atmosphere and different sintering temperature and heating rate.
方法采用微波能和水浴两种方法加热固化义齿基托树脂，进行挠曲强度、度和收缩率的对比分析。
Methods The flecture strength, hardness and shrinkage were compared in using microwave-cured and water bath-cured denture base resins.
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