The technological process and basic physical indexes of water soluble polyester sizing agent in experiment preparation are introduced. Its chemical structure characteristics are certified.
介绍了试验室制备水溶性聚酯浆料的工艺过程及其基本物理指标，并验证了其化学结构特征。
These compounds, which are all similar in chemical structure, have promising characteristics, but the human body does not easily absorb them, and they can be toxic at very high doses.
这些复合物的化学结构相似，在治疗阿尔兹海默症方面很有前景。 但人体不易吸收这些物质，而且用量很高时，它们会产生毒性。
Chromium oxide green with corundum crystal structure has such characteristics as high thermal stability, high painted capacity, chemical corrosion-resisting capacity, etc.
刚玉晶体结构型氧化铬有高的着色力、高热稳定性及耐化学腐蚀等特点。
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