geometrical draught

Effects of SiAlON polytypoids contents on the bulk density, apparent porosity and room and high temperature modulus of rup- ture were investigated.

以电熔白刚玉、矾土细粉、铝(Al)粉和硅(Si)粉为原料,通过原位氮化反应烧结工艺在较低温度(1500℃)下制备了多型体SiAlON[12H(SiAl5O2N5),21R(SiAl6O2N6)]结合刚玉耐火材料。

Constructing a Model System for Evaluating Performance of Local Government Appropriation for S&T Based on a Concept of ″Indicator Target″;

基于“指标靶”概念的地方政府财政科技投入绩效评价模型体系的构建

Research on multifaceted model system of complicated decision-making problem;

复杂决策问题的多元化模型体系研究

Group-base level production planning model was designed focusing on cost control in integrated model system.

在逐级细化的集成模型体系中,集团-基地级生产计划模型以成本控制为核心。

The technological requirements for preparing tackified preforms by using LCM were painted out.

总结了20世纪90年代以来关于复合材料液体模塑成型(LCM)技术中纤维预成型体制备技术的相关文献报道,指出LCM用纤维预成型体应满足的工艺性要求,且对当前国内外纤维预成型体的成型方法及其制备技术中应用的几种增粘剂进行了分析和概述,并对纤维预成型体制备技术的发展方向进行了展望。