27 GB/T 16529.4-1997 光纤光缆接头 第4部分: 分规范 光纤光缆机械式接头 Splices for optical fibres and cables--Part 4: Sectional specification Mechanical splices for optical fibres and cables 28 GB/T 16529.2-1997 光纤光缆接头 第2部分: 分规范 光纤光缆接头盒和集纤盘 Splices for optical fibres and cables--Part 2: Sectional specification-Splice organizers and closures for optical fibres and cables 29 GB/T 17444-1998 红外焦平面阵列特性参数测试技术规范 The technical norms for measurement and test of characteristic parameters of infrared focal plane arrays |