词汇	three-level supply chain
释义	three-level supply chain 三级供应链
随便看	sequential file input statement sequential file matching sequential file mode sequential file of variable length record sequential file organization sequential file rollback sequential file sort sequential file structure sequential file stucture sequential filling sequential filter sequential filtering sequential filtering algorithm Sequential filtering for optoelectronic target sequential filter network sequential filter network, active sequential-financing sequential financing hypothesis sequential firing sequential fission sequential fitness sequential flash sequential flasher circuit sequential flights sequential-flow transportation