以下为句子列表：
英文: Abstract: The chemical kinetic parameters of single-base p ropellant are determinated using microcalorimetry and the experimental condition s are studied.The results obtained are very imporant for the study of the decomp osition mechanism and sefety of gu
中文: 文摘:用微热量热法系统测试了单基发射药的动力学参数，摸索了测试条件，其测定结果对今后发射药分解机理和安全性研究具有一定的参考价值。
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英文: The nucleating effects of α and β nucleating agent on the crystallization behavior of polypropylene (PP) were studied by differential scanning calorimetry (DSC) and X-ray diffraction spectrum (XRD).
中文: 摘要用差示扫描量热仪和X射线衍射仪对两种类型成核剂改性的聚丙烯的结晶行为进行了表征。
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