systemsn.系统；制度；体制名词system的复数形式.systems optimization系统优化Systems of Degrading贬谪制度systems of the press新闻体制systems compatibility系统兼容性Systems biotechnology系统生物学技术Systems decoder model系统解码模型Systems Administratorph.systems of time delay时滞系统Systems of principles原理理论体系systems transformation系统改造