With the development of the modern communication technique, the frequency of communication systems are becoming higher and higher. In the MF to HF, and to RF band, even some frequencies in microwave band are used in some systems.
随着现代通信技术的发展,通信系统的频率不断提高,由原来的中频到高频,由高频到射频,乃至到微波频段都有涉及。
参考来源 - 矩量法在射频电路设计中的应用·2,447,543篇论文数据,部分数据来源于NoteExpress
ABBREVIATION for mezzo forte 中强音
Mrs. Thompson got two more letters from him with the last one signed, Theodore F Stoddard, M. D. (医学博士).
汤普森夫人又收到了他的两封信,最后一封的署名是:西奥多·F·斯托达德,医学博士。
In a word, the induced e. m. f. lags behind the current.
总之,感应电动势滞后于电流。
The aerobic selector process can control filamentous bulking efficiently under low F/M condition.
选择器系统在低负荷条件下能有效地控制污泥丝状菌性膨胀。
The I.M.F.predicts developing economies will continue to grow for the year, but only by about one and one-half percent.
VOA: special.2009.04.24
F Then I'm going to print a capital F just % 1f C to be aesthetically interesting equals another %.1fc.
然后我将打印大写字母,使其比较美观的,等于另一个。
In this case, I'm going to get back the answer 3 F-O-O because the user typed in F-O-O, but wait a minute, what's with this?
假若这样,我得到了答案3,因为用户输入了,等一下,用这个干吗?
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