catapultn.弹弩；发射机v.发射catapult launching起飞喷射装置,弹射器发射catapult mechanism弹射机制catapult productivity弹涂效率catapult holdback arms弹射器保险装置弯杆catapult dissemination弹射散播catapult-launching gear弹射装置Catapults and Arresting Gear飞机弹射和阻拦装置catapult-type ejection seat套筒式弹射座椅Catapult Aircraft Merchantship弹射飞机的商船(英)Catapult Data Acquisition System弹射数据获取系统