SJ 20441-1994.Specification for type TEC1-04904 thermoelectic cooling module.1范围...

行业标准2023.07.24

SJ 20442-1994.Specification of ceramic disks for pill-box windows in microwave t...

行业标准2023.07.24

SJ 20446-1994.Specification for Zr-V-Fe getter.1范围1.1主题内容SJ 20446规定了低温激活的常温非蒸散型锆...

行业标准2023.07.24

SJ 20447-1994.Specification for type TEC3-10103 thermoelectic cooling module.1范围...

行业标准2023.07.24

SJ 20439-1994.Design requirement for printed-wiring electrical backplane assembl...

行业标准2023.07.24

SJ 20438-1994.Methods for measurement of lead tin telluride slice for use in inf...

行业标准2023.07.24

SJ 20437-1994.Specification for lead tin telluride slice for use in infrared det...

行业标准2023.07.24

SJ 20408-1994.Methods of measurement for electric performance of UHF digital rad...

行业标准2023.07.24

SJ 20407-1994.Generic specification for UHF digital radio relay equipments.1范围1....

行业标准2023.07.24

SJ 20406-1994.General specification for airborne dirgital altimeter based on atm...

行业标准2023.07.24