书名原文:Disposal systems 书名原文:Diesel fuel systems 书名原文:Circuits and systems 书名原文: Linear systems. 书名原文:Digital control systems 书名原文:Process-control systems 书名原文:Spread spectrum systems 书名原文:Oilfield water systems 书名原文:Signals and linear systems 书名原文:Analysis of linear systems