The Lockheed Martin-led team, which includes Ultra Electronics Ocean Systems and ERAPSCO, collectively has more than 50 years of experience in the design and development of expendable devices.是什么意思_The Lockheed Martin-led team, which includes Ultra Electronics Ocean Systems and ERAPSCO, collectively has more than 50 years of experience in the design and development of expendable devices.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句