词汇	铁路等级
释义	铁路等级医railway classification
随便看	threshold conditon threshold constraint threshold content threshold contraction threshold contrast threshold control threshold-controllable technique threshold-controllable tech-nique threshold control speed threshold corpus threshold country Threshold coverage of soil erosion threshold crazing stress threshold criterion threshold cross threshold crossing height threshold crossing heighttch threshold cryptography threshold cryptology threshold cryptosvstem threshold cryptosystem Threshold distance threshold-distortion tradeoff threshold dividend threshold current