upward ejection catapult向上: upward; up弹射器: catapult; ejector向上弹射: eject upward; upright ejection; upward ejection机上弹射器: airborne catapult向上弹射座椅的脚踏板: upward-seat-type foot stirrup下载手机词典可随时随地查词查翻译
