Nowadays, two types of steering gear are mainly used: rack-and-pinion steering gear and recirculating-ball steering gear．

If only the nose gear can be extended, pilots can land on the nose gear.

In the event of failure of only one landing gear _____ , the pilot may choose to retract all the gear.

Lesson Two Text A True of False8. Landing gear can be classified as retractable and fixed gear.

In the event of failure of only one landing gear _____ , the pilot may choose to retract all the gear. A: brake B: leg C: crank D: tire

【简答题】翻译句子:“P”means park, “R”means reverse, “N”means neutral, “D”means drive, “2”means manual second gear, and “1”means manual low gear.

智慧职教: Match these terms with their Chinese translations（匹配）. gear train driver gear driven gear spur gear gear ratio compound gear train idler gear

The driving gear of an intermittent gear mechanism must be incomplete gear

The landing gear consists of the _________ gear and the main gears

Recirculating-ball steering gear contains following main components: worm gear, ball nut, steel balls and sector gear, which are all in one steering gear box．