The type of binder and absorbent used in the stealth wave-absorbing paint was stressed on.
隐身涂料普遍应用于军事领域,重点介绍了隐身吸波涂料中粘结剂和吸收剂的种类,阐述了纳米吸波材料、导电高分子吸波涂料、多晶纤维吸波涂料、等离子体吸波涂料等的最新研究现状,对吸波涂料的发展趋势进行了概括。
The theoretical analysis is made on the reasons why the aggrandizement of motor noise is caused by higher harmonic in the output of frequency converter, and why fan noise is induced by the resonance of carrier wave frequency and fan, and the solution scheme is put forward.
对由变频器输出中的高次谐波造成电动机运转噪声增大及载波频率与风机共振造成风机噪声的原因进行了理论分析,提出了解决方案。