这部照相机内部有故障保险装置，可以令照相机在未接收到正确信号时无法运行。
The camera has a built-in failsafe device which prevents it from working if the right signals aren't received.
德维尔强调：“造出能拍摄如此之快的图像的照相机，这项任务和照相机本身都是了不起的成就。”
Making a camera capable of taking such quick images was an achievement in and of itself, Dwyer emphasized.
这幅图像是由哈勃存档数据合成而来，这些数据来自宽视野2号行星照相机和高级测量照相机。
This image is a composite of archival Hubble data taken with the Wide Field Planetary Camera 2 and the Advanced Camera for Surveys.
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