例句與造句

1. the newly developing transmit diversity and space-time codes are just one of the most important schemes to improve wireless spectrum efficiency
   而近年來提出的發(fā)射分集和空時碼就是能夠有效提高無線頻譜利用率最重要的方案之一。
2. It's difficult to find wireless spectrum in a sentence. 用wireless spectrum造句挺難的