船用陀螺罗经组合操舵仪
Marine autopilot with gyro compass
Marine autopilot with gyro compass
General specification for follow-up pilot of ship
Quality requirements for spirits-Part 2:Brandy
Gauges of drill chuck tapers
Marine rate of turn indicators
Marine centrifugal fans
Marine axial flow fans
Gauges of Morse tapers and metric tapers
Shipbuilding and marine structures-Deck machinery Towing winches for deep sea use
Determination of halidess in uranium ore concentrate-Volhard titration