There is no evidence whatever that competition in broadcasting has ever reduced costs...没有任何证据表明，广播业的竞争使成本有所降低。Digital TeleVision ( DTV ) broadcasting is realized by satellite, cable and terrestrial wireless.数字电视广播主要通过卫星...
剩余价值学说是马克思经济理论的基石.The doctrine of surplus value is the cornerstone of Marx's economic theory.互信是交往的基石。Mutual trust is the bedrock of a relationship.我们宗教的创始人把这看作是道德的基石.The founders of our religion made this a corners...
钾质白云母是铅锌银矿床中的主要热液蚀变矿物,通常表现为白云母化、绢云母化、伊利石化.Potash micatization is one of the main hydrothermal alteration minerals genetically related to the lead - zinc - silver deposit.康山金矿田围岩蚀变主要为硅化 、 绢云母化、碳酸盐化及黄铁矿化.The main wall rock...