long-wave band 中文意思是什麼
long-wave band
解釋
長波波段-
Radio2 can be heard on the long wave band
第二廣播電臺可在長波段收聽到。 -
The thermovision 2000s long - wave, narrow band qwip 320 x 240 fpa delivers high thermal sensitivity in both warm and cold climates and makes the system resistant to existing laser
Thermovision 2000採用320 x 240像素長波窄波段的焦平面的探測器。在溫暖和寒冷的天氣下具有很高的熱靈敏度,確保系統能夠抵抗現有的激光攻擊性武器。 -
There has been established an all enveloping transmission network of broad - band information with big - capacity optic fiber, digital micro - wave, cable and broadcast tv. long distance telephone calls can reach 1, 800 cities in the country and practically all places in the world
全市已形成大容量光纖、數字微波、有線和無線全面覆蓋的寬帶信息通訊立體傳輸網路,長途電話可直撥世界各地和國內1800多個城市。 -
The first generation uses the shortwave ( 0. 8 m - 0. 9 m ) and multimode fiber, and the second generation uses long wave ( 1. 3 m, 1. 5 m ) and singlemode fiber. and now the third generation uses dwdm fiber - communicating technic. sichuan wide band transmission net optical fiber system is an important project of sichuan telecom
寬帶傳輸網從採用短波長( 0 . 8 - 0 . 9 m )和多模光纖的第一代光纖通信技術到採用長波長( 1 . 3 m 、 1 . 55 m )和單模光纖的第二代光纖通信技術發展到了今天採用dwdm ( densewavelengthdivisionmultiplexing )的第三代光纖通信技術。
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