narrow band

基本解释

The picture is a composite of images taken through both broad and narrow band filters.
這張圖片是由寬帶濾波器和窄帶濾波器所拍攝的照片所郃成的。
This composite was recorded through narrow band filters that transmit the light from ionized hydrogen, sulfur, and oxygen atoms in the region.
這幅圖像是通過窄帶濾波器記錄下來的，它將該區域的離子化氫、硫和氧原子信號轉化爲圖像。
Also at equinox, the shadows of the planet's expansive rings are compressed into a single, narrow band cast onto the planet as seen in this mosaic.
也是在春分點，廣濶的土星環的影子被壓縮成一層很窄帶子投射在這個行星上，這也可以在組圖中看到。

Throughout its history in the United States, the brand has had trouble breaking out of a narrow band of sales.
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For the last three years, copper has traded on commodity exchanges in a narrow band centering around 76 cents per pound.
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This is largely because members of long-running teams get into the habit of culling their ideas from a narrow band of sources: one another.
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a limited-capacity transmission channel such as that used for transmitting telephone calls and faxes &rarrcompare broadband