Maritime navigation and radiocommunication equipment and systems—Track control systems—Operational and performance requirements，methods of testing and required test results
Ships and marine technology—Determination of the shaft power of ship propulsion systems by measuring the shaft distorsion—Part 2:Optical reflection method
Maritime navigation and radiocommunication equipment and systems—Digital interfaces—Part 2：Single talker and multiple listeners—High-speed transmission
Maritime navigation and radiocommunication equipment and systems—VHF radiotelephone equipment incorporating Class“D”Digital Selective Calling（DSC）—Methods of testing and required test results
Maritime navigation and radiocommunication equipment and systems—Digital interfaces—Part 450：Multiple talkers and multiple listeners—Ethernet interconnection
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