But many still require human intervention: workers have to be sent out to download sensor readings or to fix problems.
但许多情况下这种系统仍需人工干预：派出工人去下载传感器的读数或去抢修故障。
But many still require human intervention: workers have to be sent out to download sensor readings or to fix problems.
但许多情况下这种系统仍需人工干预：派出工人去下载传感器的读数或去抢修故障。
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