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| 11. | More than 355,200 Americans hold licenses as amateur radio operators. |
| 355200名美国人持有业余无线电台工作执照。 |
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| 12. | Amateur radio is also known as ham radio, why, nobody knows for certain |
| 业余无线电也叫HAM RADIO，这种叫法似乎也追溯不到什么可信的起源。 |
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| 13. | As they were both amateur radio enthusiasts they were able to keep in daily touch(with each other) over |
| 因为他们两个都是无线电的业余爱好者，所以每天都能通过无线电波与对方保持联系。 |
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| 14. | Many amateur radio clubs offer classes for beginning hams in licensing, including Morse Code |
| 很多无线电俱乐部都为初学者开设了CW学习班。 |
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| 15. | "With minor changes, this code has remained in use for certain types of radiotelegraphy, including amateur |
| 除一些小变动外,这种电码一直用于某些种类的无线电报,包括业余无线电。 |
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| 16. | The Morse Code used today by amateur radio operators is also known as the International Code |
| 现在HAM们所用的摩尔斯电码都是国际标准的电码。 |
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| 17. | In actual fact, a suitably modified amateur radio transmitter operating in either the420 to450 megahertz |
| 事实上,一个适当限制在420到450兆赫波段或1.3千兆赫波段的带有高度定向天线的业余无线电广播发射机,能够把声音信号传给头骨并且所花的费用比一辆汽车的价格还要少。 |
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