贸易单证中代码的位置
Location of codes in trade documents
Location of codes in trade documents
Layout key for international trade documents-Part 3:Application guidelines
Flight mechanics-Concepts,quantities and symbols-Part 4:Flight performance
Plate shear-Testing of the accuracy
Flight mechanics-Concepts,quantities and symbols-Part 3:Stability and control of aircraft
Aerospace-Pipelines-Identification
Flight mechanics-Concepts,quantities and symbols-Part 5:Flight measurements
Low alloy steel castings for general engineering and structural purposes
Methods for sampling boiler steam
Water for industrial circulating cooling system and boiler-Determination of solids matter