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We don't usually write about Apple's (AAPL) patents because the company files so many and so few ever see the light of day.
我们通常不会报道苹果（Apple）的专利，因为它的专利申请多如牛毛，而被公布的则少之又少。
But for Patent Application No. 20130073095, published Thursday and spotted by AppleInsider's Mikey Campbell, we'll make an exception.
但我们要为20130073095号专利申请破例一次。这项专利于上周四发布，由AppleInsider的米奇?坎贝尔发现。
It describes a sensor-and-microprocessor system that can detect when an iPhone or iPad is falling and shift the device's center of balance so that it doesn't land on its most fragile parts.
这项专利描述了一个传感器和微处理器系统。一旦这个系统探测到iPhone或iPad正在坠落，它将改变设备的重心，防止设备坠地时最易碎的部件着地。
