Home / Standards / GB/T 22057.1-2008 GB/T 22057.1-2008 Abolished Microscopes - Imaging distances related to mechanical reference planes - Part 1: Tube length 160mm 显微镜 相对机械参考平面的成像距离 第1部分：筒长160mm Standard Type GBT ICS 37.020 CCS N32 Status 废止 Issue Date 2008-06-20 Implementation 2009-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A