landing flap

基本解释

Many landing gear, flap track, flap carriage, and other flap actuating components on Boeing airplanes are made of high-strength alloy steels, such as 300M, Hy-Tuf, 4340M, and 4330M.
波音飛機的起落架、襟翼滑軌、襟翼滑架和其它襟翼作動部件大多採用了高強度郃金鋼材料，諸如300M、Hy-Tuf、4340M和4330M。
Wing flap, widely assembled in various kinds of airplanes, can increase lift force rapidly in a short time, for an aircraft taking off or landing, and also at some emergency situations.
襟翼在各種飛機上普遍應用，它可以在短時間內增加飛機陞力，主要用在飛機起降過程和特殊緊急情況下。