Match the words on the left with their meanings on the right. The firstone is done for you.
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Match the terms in column A with the explanations in column B.
分别举例说明一项几何光学变换的光电检测系统和一项物理光学变换的光电检测系统,并简要说明其特征。
简述半导体激光器和发光二极管在结构、发光机理和工作特性上有什么不同?
试归纳总结原子自发辐射、受激吸收和受激辐射三个过程的基本特征。