媒介技术毕竟是一种技术因素，它的使用和影响都是在一定的社会历史时期和社会关系中的，对它所产生的影响。
Medium technology is one kind of technological factor after all, its use and influence are all in certain social historical period and social relationships.
银矿是在一定的地质历史时期以及特定的地质环境中，受到一些重要的地质事件影响而形成的。
Silver deposits are formed by suffering some important geological events in a certain geological history period and special geological environment.
该政策虽然在特定历史时期在打击犯罪方面起到了一定的作用，但同时又凝聚了许多中华儿女的屈辱、鲜血和冤魂！
Although this policy had an effect on striking crime during the special history, it also resulted in the humiliation, the blood and the grievances of many people at the same time.
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