采用窄带滤光片作为选频元件对精确波长激光器高频调制特性进行了小信号分析。
The small signal analysis for high frequency modulation characteristics of specific wavelength laser diode with narrowband filter was presented.
尤有甚者，工程师期望这些超宽频元件，能比今天的窄频无线电设备更便宜、更小、更不耗电。
What is more, engineers expect these UWB units to be cheaper, smaller and less power-hungry than today's narrowband radio devices.
电子元件：生产各种系列的接线柱、险丝座、插件、频连接线、车点烟插头及插座等。
Electric components: This series include various kinds of terminal, fuse box, connector, wire bundle connection cables cigarette plug and socket for automobile, etc.
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