'HF'是英语中的缩写词,全称为'high frequency',翻译为“高频”。这个术语通常用于描述电子设备中使用的高频率信号,例如无线电通信、雷达、天线等等。
以下是九个英语句子,含有'HF'词语:
1. The HF signal is very useful for long-distance communication.(HF信号对于远距离通信非常有用。)
2. The HF band is reserved for amateur radio operators.(HF频段是留给业余无线电台操作员使用的。)
3. The HF radio is essential for offshore communication.(HF无线电对于海上通信是必不可少的。)
4. The HF antenna needs to be properly grounded to work effectively.(HF天线需要正确接地才能有效工作。)
5. The HF transmitter should only be used by licensed operators.(HF发射机只能由持证操作员使用。)
6. The HF frequency range is between 3 and 30 megahertz.(HF频率范围在3至30兆赫之间。)
7. The HF signals can be affected by solar flares.(HF信号会受到太阳耀斑的影响。)
8. The HF radio is commonly used in emergency situations.(HF无线电在紧急情况下常被使用。)
9. The HF band is also referred to as shortwave radio.(HF频段也被称作短波无线电。)
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