波段

In the first chapter, the efforts made by the human beings to utilize electromagnetic resources were reviewed, the physical mechanisms underlying Cherenkov free-electron lasers expounded and the research activities in this field, both in and out of China, summarized.

第一章回顾了人类在开发利用不同波段的电磁波资源方面所做的努力；阐述了契伦柯夫自由电子激光的互作用机理并详细介绍了国内外这一活跃领域的研究状况。

Data rates as high as 9600 band have been demonstrated on these new UHF channel.

数据传输速率高达9600波段已经表现出对这些新的UHF频道。

These are stored on a per-band basis i.e. 160 M, 75 M, 40 M, 30 M, 20 M, 17 M, 15 M, 12 M, 10 M, 6 M, FM-BCB, Air, 2 M, and UHF.

这些存储在每个波段的基础上（即160米，75米，40米，30米，20男，17女，15男，12女，10米，6米，调频环丁烯，空气，2米，和超高频。

Later, you can expand your attention, in a similar way, to the other DX bands.

然后，就可以用同样的方式，将你的注意力扩展到其他__波段。

Later, you can expand your attention, in a similar way, to the other DX bands.

然後，就可以用同样的方式，将你的注意力扩展到其他__波段。

F region is one of the most important regions in the ionosphere. The night-time irregularities in this region can affect nearly all-frequency radio waves propagating through them.

电离层F区是电离层最主要的区域，尤其是其中的不规则结构，导致几乎所有波段的电磁波产生幅度和相位的闪烁。

Tad Doyle himself was previously the drummer for the Boise, Idaho band 'H-Hour' active in the early and mid-'80s, and had earlier played in a Gang of Four cover band called Red Set.

泰德多伊尔本人曾鼓手的爱达荷州博伊西波段的H小时'活跃在初期和中期， 80年代，并曾在一个四人帮覆盖带红集。

If transmitter and listening point are located in the same ITU zone — 1 point in all bands.

发射点和接收点在同一个ITU区域--所有波段都是1分。

Data in the gamma-ray band were acquired by the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope, while the radio rotational ephemeris used to fold gamma-rays was obtained using both the Green Bank Telescope and the Lovell telescope at Jodrell Bank.

伽玛波段的数据来自于Fermi伽玛射线空间望远镜上的大面积望远镜的观测，用于折叠伽玛射线数据的射电旋转周期数据来自于Green Bank望远镜和位于Jodrell Bank的Lovell望远镜的观测。

Under the conform conditions, we compute and compare the IR radiation of aircraft and bait's, especially in MIR and LIR.

在相似的飞行条件下，具体计算了飞机和诱饵的红外辐射能量，并对比了二者的红外辐射特性，特别是在中波红外和长波红外两个波段上。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。