Through deducing the Green's function in a three level layer soil by complex image method, application of this method is clarified.
通过运用等值复数镜像法求出水平三层土壤中的格林函数，阐述等值复数镜像法的应用。
Commonly speaking, security services on the higher layer protect applications, security services on the lower level layer protect communication medium.
一般来讲，高层的安全服务用来保护某个应用，低层的安全服务用来保护某个传输媒介。
Commonly speaking, security services on the higher layer protect applications, security services on the lower level layer protect communication medium.
一般来讲，高层的安全服务用来保护某个应用，低层的安全服务用来保护某个传输媒介。
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