问题描述：
英语翻译
Public switched telephone network(PSTN) is perhaps the most stupendous telecommunication network in existence today.There are over 400 million telephone connections and over 60,000 telephone exchanges in the world over.The length of telephone wire pairs buried underground exceeds a billion kilometers.
A unique feature of the telephone network is that every piece of equipment,technique or procedure which has evolved in the last 100 years from a number of different giant corporations,is capable of working with each other.Compare this with the fact that it is almost impossible to interface the first IBM computer with its own latest system.The enormous complexity of the telephone network is managed by using a hierarchical structure,worldwild standardization,and decentralization of administration,operation and maintenanc
麻烦不要用GOOGLE或者有道什么的.这个需要有一定的专业知识且英语好
马上考试了 会考这个3个翻译.
Public switched telephone network(PSTN) is perhaps the most stupendous telecommunication network in existence today.There are over 400 million telephone connections and over 60,000 telephone exchanges in the world over.The length of telephone wire pairs buried underground exceeds a billion kilometers.
A unique feature of the telephone network is that every piece of equipment,technique or procedure which has evolved in the last 100 years from a number of different giant corporations,is capable of working with each other.Compare this with the fact that it is almost impossible to interface the first IBM computer with its own latest system.The enormous complexity of the telephone network is managed by using a hierarchical structure,worldwild standardization,and decentralization of administration,operation and maintenanc
麻烦不要用GOOGLE或者有道什么的.这个需要有一定的专业知识且英语好
马上考试了 会考这个3个翻译.
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