多項(xiàng)選擇題

The WDM components making up a WDM system should meet the following requirements .（）

A.插入損耗低 Low insertion loss
B.具有良好的帶通特性 Excellent bandpass property
C.溫度穩(wěn)定性好 Performance stability in spite of temperature change
D.復(fù)用通路數(shù)多A number of multiplexing channels
E.具有較高的分辨率 High resolution
F.幾何尺寸小 Small size

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