translation.en: Manufacturers haven't built this carrier phase technique into their cheap GPS chips because they're not sure what the general public would do with geolocation so accurate that you could pinpoint the wrinkles in the palm of your hand.
translation.zh: 制造商还没有把这种载波相位技术 装进他们便宜的GPS芯片中， 因为他们不确定公众会怎么想， 如果地理定位精确到 你可以精准找到你手掌中的皱纹。