问题
问答题 简答题
什么是CWDM技术？
答案
参考答案：
粗波分复用。CWDM系统的常用信道间隔和通带宽度分别为20nm和13nm。
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什么是CWDM技术？
参考答案：
粗波分复用。CWDM系统的常用信道间隔和通带宽度分别为20nm和13nm。
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| What's the time now? Oh, it's 7: 30. Let's go to school now. My classmates and I are on the way to school. Fred's home is not far from our school. He usually goes to school on foot. The girl with a school bag is Sally. She often rides her bike to school. Do you know where I am? Look, I'm on the bus with my good friend Tony. My classmate, Maria, is also on the same bus. We are talking with each other about our pet cats. Sandy often gets up late, so her father has to drive her to school every day. Who is the boy? His name is James. His home is on the other side of the river, so every day he goes to school by boat. | ||||||||||||||||||
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