label 标记；标志label distribution protocol 标签分布协议label switching router 标签交换路由器labor intensive 人力密集laboratory (lab) 实验室；研究室ladder network 阶梯式网络laden, protocol- 协定负载lag 延迟lambda 入lamina 薄片laminate 压层板laminate selection 分层选择laminate, copper-clad 压层板laminate, dry film 压层板laminate, epoxy-glass 覆铜压层板laminate, epoxy-paper 环氧纸基层压板laminate, glass-base 玻璃基层压板laminate, paper-base 纸基层压板laminated object manufacturing (LOM) 层压板制造[技术]lamination 层压，层压结构；分层，叠层lamp, incandescent 白炽灯lamp, infrared-r