frequency micrometer 中文意思是什麼
frequency micrometer
解釋
頻率測微計- frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
- micrometer : n. 【機械工程】測微計，千分尺；【天文學】測距器。
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Polydispersed a - fe nanoparticles have been obtained by using bi - amine terminated polyurethane flexible macromolecule as a surfactant, and on the basis of them, the epoxy - iron nanocomposite particles have been synthesized by in situ polymerization compositing technology. the real parts of both the permittivity and the permeability of the nanocomposite decrease firstly and then increse with increasing dose of surfactant. the composite particles have ideal comprehensive properties at the dosage of the sufactactant of 0. 5 g, and its frequency dispersion exceeds that of traditional micrometer carbonyl iron powders
以雙端氨基柔性大分子為表面活性劑制備了多分散的- fe粒子，並在此基礎上以原位聚合復合法制備了環氧樹脂-鐵納米復合粒子，發現隨表面活性劑用量增加，復合粒子介電常數實部和磁導率先降低后增加，在表面活性劑用量為0 . 5g時復合粒子有較好的綜合性能，頻散特性優于傳統微米羰基鐵吸收劑。
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