固体扩散漫反射吸收光谱研究表明：DBC-ASA处于分子筛SBA 15孔道内，分子筛孔道对DBC-ASA具有立体限域效应。
The solid state diffuse reflectance absorption spectra show that DBC-ASA is located in the channel of the SBA15 molecular sieve, and the channel of SBA15 has stereoconfinment.
提出了挤出机固体输送段离散输送的新概念，建立了固体输送段的三维立体离散输送模型。
This paper presents a new discrete transport concept on extruder's solid-conveying zone. A three-dimensional stereo-discrete transport model is set up in solid-conveying zone.
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