本文提出了高强混凝土的原材料必须精心优选，以确保高强混凝土的成功配制和高强混凝土强度的稳定性。
In this paper, it is emphasized that the raw materials for high strength concrete should be elaborately selected in order for its successful design and strength stability.
从制品结构和模具浇口设计、原材料和成型条件的优选诸方面对长条形注塑件翘曲变形进行了系统的试验研究。
This paper introduces the experimental studies on the warpage of injection molded strip parts in the design of part structure and mold gate and the selecting of molding conditions and materials.
通过对混凝土原材料的优选和配合比的优化，配制出了高品质的自密实混凝土。
By rationally selecting concrete components and optimizing concrete mix proportion, high quality self-compact concrete was produced.
在研究过程中对原材料充分进行筛选和分析，对每种材料除了最佳掺量的优选外，还特别重视和单项实验每种材料与水泥的相容性的问题。
The issue of compatibility of each raw material and Portland cement has been paid importance to besides raw and processed materials have been fully filtered and analyzed in the researching process.
在研究过程中对原材料充分进行筛选和分析，对每种材料除了最佳掺量的优选外，还特别重视和单项实验每种材料与水泥的相容性的问题。
The issue of compatibility of each raw material and Portland cement has been paid importance to besides raw and processed materials have been fully filtered and analyzed in the researching process.
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