automatic course keeping and depth keeping controls
航向深度自动控制仪航向及深度自动控制
航向及深度自动控制
bringing more convenience to the people in their daily life; providing amenities for the people; making life easier for the population
life saving apparatus [= life saving appliance]
action on health keeping and body building
alkali-resistance keeping rate
Ancient Han Health-Keeping Extract
anti-rot and freshness-keeping
aqueous fresh-keeping packaging
Asking for agreement and keeping difference
automatic course-keeping gear
automatic station keeping
automatic station keeping system
automatic station-keeping system
Being honest and keeping faith