wèi xīng dǎo háng
satellite navigation
sat-nav
wèi xīng dǎo háng xì tǒng
satellite navigation system
sat-nav
dǎo háng yuán
navigator (on a plane or boat)
quán qiú wèi xīng dǎo háng xì tǒng
Globalnaya Navigatsionaya Satelinaya Sistema or Global Navigation Satellite System (GLONASS), the Russian equivalent of GPS
abbr. to 格洛納斯|格洛纳斯