Kab hluav taws xob cim ntsuas.
May 06, 2018| Seev rau kev siv xov tooj cua tshuab hauv nkoj. Tam sim no, nws muaj ob txoj kev siv nkhaus, xws li kev tshawb nrhiav, kev sib txuas lus, thiab lwm yam, thiab loran, decca, omega, meridian navigation, etc. Lawv nyias muaj nyias qhov zoo thiab qhov tsis zoo, uas siv tau ua ke nrog sib , tab sis lawv tsis tuaj yeem hloov tau los ntawm lwm tus. Qhov kev ua zoo tagnrho yog tseem tsim tsa. Nws yuav tsum yog ntiaj teb, txhua yam huab cua, nws tus kheej, kev ua siab tawv, kev ntseeg siab thiab siab. Omega thiab meridian navigation systems, ib zaug hu ua tus ob zoo kawg ntawm kev ua ntawm navigation tshuab txij thaum xyoo 1960, tsuas yog ib feem ntawm cov saum toj no. Tus tshiab tshiab US navigation navigation system, uas yuav tau muab tso tawm rau xyoo 1980s, yog hu ua GPS ntiaj teb chaw kaw lus. Nws muaj peev xwm yuav tsum tau muab tso rau qhov siab, qhov kev txiav txim siab siab tshaj qhov nruab nrab ntawm navigation, thiab nws yog ib txoj kev kawm tshiab rau qhov zoo qhov chaw.
Tsis tas li ntawd, Cov twj paj nruag nrog Marine muaj xws li meteorological thiab hydrological observatories, xws li roj siab gauges, cov thermometers qhuav thiab qhuav, anemometers, thiab lwm yam.