Sent_en: 2zh The camera had been operating on its backup power since June 30, 2006, when engineers switched from the primary power supply ("Side A") to the backup ("Side B") due to a malfunction.
Sent_yy: 2006年6月30日，由于故障，工程师从主电源（“A侧”）切换到备用电源（“B侧”），相机此后一直在使用备用电源。