English translation for "back-up navigational method"

备用导航法

Related Translations:

navigational ranging:  航行测距

navigational planet:  导航行星

navigational triangle:  导航三角形天文三角形

navigational hazards:  航运的危害影响航行的险情

navigational watch:  航行当值

navigational data:  航行资料

navigational instrument:  导航仪器航海仪器航行仪表

navigational instruments:  导航仪器

navigational computations:  航行计算

navigational aspects:  有关航行方面的问题

Similar Words：

"back-up hydraukics" English translation, "back-up intercept control" English translation, "back-up light" English translation, "back-up man" English translation, "back-up method" English translation, "back-up overspeed governor" English translation, "back-up plate" English translation, "back-up position" English translation, "back-up roller" English translation, "back-up rolls" English translation