The 0.1 Hz VLF method, CDA, OWTS and frequency tuned resonance test system, which have been developed in recent years, are discussed.

 
  • 文中討論了近幾年以來(lái)開(kāi)發(fā)的 0 .;1Hz VL F法、CDA法、OWTS法以及變頻諧振試驗系統。
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