The probe was transferred to an orbit with a perigee of about 600 km, up from the former 200-km perigee, according to the Beijing Aerospace Control Center (BACC).是什么意思_The probe was transferred to an orbit with a perigee of about 600 km, up from the former 200-km perigee, according to the Beijing Aerospace Control Center (BACC).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句