单词	河川防洪
释义	河川防洪 river flood control
随便看	system security officer System Security Plan System Security Policy system security situation System Security Strategies System Security Working Group Systems Effectiveness Analyzer Systems Effectiveness Demonstration Systems Efficien cy Expert system segment System Segment Acceptance Test system segment table system seismic reliability system selection system selector system selector switch systems electronics box system self-adaptability system self-calibration system self-memory system self-organization system self-perfect control system self regulation system self-testing system selling