驾驶员发现飞机的起落架不能缩回。
The pilot found that the undercarriage could not be retracted.
飞机的起落架在升空时即可缩回。
The undercarriage on light aircraft do not always retract in flight.
地勤人员：飞机的起落架有机械方面的故障。众人，痴痴空等无入眠。
Airline Employee: There has been a mechanical malfunction with the landing gear.
出于同样的原因，飞机在飞行时收回起落架。
Airplanes retract their landing gear while in flight for the same reason.
飞机的左起落架轧到了灌木丛，留下了痕迹。
它们可以给电力驱动的起落架轮子动力，让飞机不用主引擎就能在地面滑行。
They could power electrically driven wheels, letting an aircraft taxi without using its main engines.
一种通用航空飞机半主动起落架控制的试验。
Test of Semiactive Landing Gear Control For a General Aviation Aircraft.
刚才你们听到的是飞机起落架放下的声音。
The undercarriage on light aircraft does not always retract in flight.
刚才你们听到的是飞机起落架放下的声音。
The sound you just heard is the landing gear locking into place.
刚才你们听到的是飞机起落架放下的声音。
The sound you just heard is the landing gear locking into place.
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