card punch
卡片穿孔器
卡片穿孔机
卡片穿乙机
打孔机
穿孔机
卡片阅读机
打卡机
conventional punch card machinery
dual peak dual wavelength method
dual qualitative and dual quantitative similarity method
Dual-column-dual-detector
gas chromatography coupled with dual columns and dual electron capture detectors
dual certificate system
dual teachers construction
0-dual-prehomomorphisms
2205 dual phase stainless steel
2227 Dual Scintillation Density Instrument
24-hour dual probe pH monitoring
a dual three-phase asynchronous electrical machine