单词	standard of unit
释义	standard of unit 单位标准
随便看	hardened steel hardened-steel hardened steel bushing hardened-steel bushing hardened steel female drive coupling hardened steel guideway hardened-steel guideway hardened steel roller hardened-steel tire hardened structure hardened surface hardened surface layer hardened system hardened tactical air control center Hardened Tactical Shelters hardened target munitions hardened thief hardened throughout hardened unique storage hardened up and secured hardened verge hardened voice channel Hardened Voice Circuit hardened way hardened ways on all axes