论文部分内容阅读
美国是一个通讯非常发达的国家,据了解,卫星通信在美国的通信方式中拥有3％的市场,而在我国却只有0.03％。
The United States is a country with very developed communications. It is understood that satellite communications have a 3% market share in the U.S. and only 0.03% in our country.