HF

• abbr. 高频（=High Frequency）

英英释义

Noun:

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

词汇搭配

• cascade hf transmission line 级联高频传输线...

近反义词

【近义词】

• high frequency 高频
• hafnium [化]铪(金属元素...