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| 41. | that the the non-halo and development and modification of inorganic flame retardant has become the main |
| 通过对无机燃剂和有机燃剂的现状的分析,指出了阻燃剂的无卤化和无机阻燃剂的开发及改性已成为阻燃剂最主要的发展趋势。 |
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| 42. | This essay introduces the main content and developmental trend of environment electronmagnetics and electromagnetism |
| 本文介绍了环境电磁学及电磁兼容技术的主要研究内容与其发展趋势,并提出了若干建议。 |
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