|
[GY/T 82-1989] 中、短波廣播場強測量方法[現行]
發布時間：1989-10-30
實施時間：1990-01-01
本標準適用于5265—1606千赫和2200—30000千赫的中、短波廣播的場強測量，以供檢測中、短..
|
|
|
[GY/T 28-1984] 衛星廣播圖像質量要求[已廢止]
發布時間：1985-01-01
實施時間：1985-01-01
本標準適用于我國衛星廣播系統對電視圖像接收系統的質量要求。利用通信衛星進行電視節目傳送時，應滿足國家..
|
推薦閱讀
- Hexalobular socket head cap screws
- Energy performance of fenestration systems for residential buildings - Calculation procedure
- Aerospace Series - Cable Outlet Accessories for Circular and Rectangular Electrical and Optical Connectors Part 002: Index of Product Standards
- Aerospace Series - Cable Outlet Accessories for Circular and Rectangular Electrical and Optical Connectors Part 064: Cable Outlet, Style k, Straight, for Heat Shrinkable Boot, Shielded, Sealed, Self-locking for en 2997 - Product Standard
- Welding Consumables - Tubular Cored Electrodes for gas Shielded and Non-gas Shielded Metal arc Welding of Non-alloy and Fine Grain Steels - Classification (iso 17632:2015)
- Slide Fasteners (zips) - Specification
- Railway Applications - Methods for Calculation of Stopping and Slowing Distances and Immobilization Braking Part 2: Step by Step Calculations for Train Sets or Single Vehicles
- Cleanrooms and Associated Controlled Environments Part 1: Classification of air Cleanliness by Particle Concentration (iso 14644-1:2015) & Part 2: Monitoring to Provide Evidence of Cleanroom Performance Related to air Cleanliness by Particle Concentration (iso 14644-2:2015)
- Welding Consumables - Wire Electrodes, Wires and Rods for Welding of Aluminium and Aluminium Alloys - Classification (iso 18273:2015)
- Railway Applications - Brake Discs for Railway Rolling Stock Part 3: Brake Discs, Performance of the Disc and the Friction Couple, Classification
檢索歷史
- 暫無搜索記錄
瀏覽歷史
