SJ 20575-1996.General specification for annoucing equipment on shipboard.1范围1.1主...

行业标准2023.07.23

SJ 20576-1996.General specification for power supplies of annoucing system on sh...

行业标准2023.07.23

SJ 20574-1996.General specification for instrument landing system (ILS) marker b...

行业标准2023.07.23

SJ 20583-1996.General specification for broadband antennas.1范围1.1主题内容SJ 20583规定了...

行业标准2023.07.23

SJ 20582-1996.Testing methods for tactic performance of sea search shipborne rad...

行业标准2023.07.23

SJ 20581-1996.General specification for sea search shipborne radars.1范围1.1主题內容SJ...

行业标准2023.07.23

SJ 20579-1996.General specification of panoramic display receivers used for comm...

行业标准2023.07.23

SJ 20580-1996.Methods for communication system electrical performance measuremen...

行业标准2023.07.23

SJ 20025-1992.Generic specification for gas snesors of metal-oxide semiconductor...

国家标准2023.07.19