美国航太总署地球大观，制图：杰西·艾伦，使用了由戈达德宇航中心的热带降雨测量任务科学数据与信息系统提供的准实时数据。
NASA Earth Observatory image by Jesse Allen, using near-real-time data provided courtesy of TRMM Science data and Information System at Goddard Space Flight Center.
与一般SPC系统相比，本系统不仅可以在线检测过程异常，对各种控制图异常模式还具有实时学习、在线识别功能。
Contrast to these common SPC systems, it can not only detect the unnatural process behavior on line, but can also learn and identify these unnatural patterns on control charts at the same time.
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