这个类的构造函数提取 JNDI 名和唯一密钥，并检查分布式映射缓存中的数据。
The constructor of the class extracts the JNDI name and the unique key, and then checks the Distributed Map for the data.
同时建立了另一类上半平面解析函数在其分布边值意义下的积分公式。
And the distributed boundary value's integral formula of another set of analytic function in upper half-plane is established.
利用圆柱坐标系中的第二类并矢格林函数求解了漏泄同轴电缆附近的场分布，并进而求解了漏泄同轴电缆的耦合损耗。
The field distribution and the coupling loss of the leaky coaxial cable are studied by using the dyadic Green's function of second kind in the cylindrical coordinate.
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