You can do a mileage retro claim at counter C13, that is the Sky Pearl Service Counter, or check your mileage account there.
您可以在C13明珠服务柜台进行里程补登，或者查询您的里程累计情况。
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At this point, to this designer, C11, C12, and C13 are architectural constructs (or components); each of them has explicitly defined external interfaces.
The C13 series high energy rare earth servomotors provide fast response and high starting torque, but are priced significantly less than comparable rare earth motors.