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May 12, 2017Nautical Gyro Compass
Gyro Compass yog raws li lub hauv paus ntawm cov gyro rotor taw ntawm kev kub ceev. -
May 12, 2017
Xov Tooj Nres Xov Tooj
Cov khoom siv rau cov nkoj siv xov tooj cua technology. -
May 12, 2017
Astronomical Positioning
Qhov tseem ceeb tshaj plaws nyob rau hauv lub nkoj ntawm lub npav, saib cov twj paj nruas nyob saum ntuj ceeb tsheej -
May 12, 2017
Landmark Positioning
Ib qho cuab yeej siv rau qhov chaw ntawm nkoj ntawm ntug dej hiav txwv. -
May 12, 2017
Khiav Trackection
Khoom siv los txhim kho qhov project. -
May 12, 2017
Nautical Instruments
① Piav qhov ntsuas qhov ntsuas.