hf.

英 美
  • abbr.=half;half
  • hf abbr.高频(=HighFrequency)
  • HF-IR 高频红外法
  • HF-link 高频链
  • HF-PCVD 高频等离子体化学气相沉积
  • HF-PECVD 热丝-等离子化学气相沉积
名词 hf:
  1. a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons

  2. 3 to 30 megahertz