Task: Translation
Input (English): The launch was originally scheduled for this past Monday, but was delayed two days because of helium and nitrogen leaks on board the shuttle.
Output (Japanese): 打ち上げは当初過ぎたばかりの月曜日の予定だったが、ヘリウムと窒素がシャトル内に漏れたため２日遅れた。