1、Smt属于转换英语THT(Through Hole Technology):通孔安装技术SMT(Surface Mounted Technology):表面安装技术PTH(Pin Through the Hole):通孔安装THT (Through Hole Component):通孔插装元件SMB (Surface Mount Printed Circuit Board):表面安装PCB板SMC (Surface Mount Component):表面安装元件SMD (Surface Mount Devic