求翻译：　　一个基站的覆盖区是指能满足一定服务质量指标的可通话范围，实现这个覆盖范围可以选择不同的发射功率、天线高度、天线增益及方向性等参数，在传播受限的大区基站，覆盖范围主要取决于地形地物及环境噪声；在干扰受限的无线网中，覆盖范围将受到同频干扰的影响；在话务密度很高的地区，覆盖范围则取决于可用频道数和用户密度。是什么意思？

A base station coverage area is able to meet a certain quality of service indicators can call the scope to achieve this coverage can choose a different transmit power, antenna height, antenna gain and directivity parameters such as base station spread limited region, covering The range depends on te

A base station's coverage area is the ability to meet the service quality of the conversations can be, and that you can select a different range of the transmitter power, antenna height, antenna gain and the direction of propagation, etc. , in the Poitou-Charentes region is restricted in the coverag

A base depot cover area is refers can satisfy certain grade of service target to be possible to converse on the telephone the scope, realizes this cover scope to be possible to choose different parameters and so on emissive power, antenna height, antenna gain and directivity, in the dissemination th

A base station of cover area is means can meet must service quality index of can call range, implementation this cover range can select different of launches power, and antenna height, and antenna gain and the directional, parameter, in spread by limited of large area base station, cover range main

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