How is service usage metered and accounted for?

对服务使用是如何进行计量和记账的？

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Service usage Metering (both real-time and historical);

服务使用计量（实时的和历史的）；

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Total: The total amount charged for business service usage.

Total：为使用业务服务支付的总成本。

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Tablets started off as rugged devices for heavy-duty industrial and field-service usage.

FORBES: What is the Ultimate Ruggedized Mobile Device?

Sooner or later, he says, operators will have to introduce more stringent usage caps, demand a premium for better service or charge by usage.

ECONOMIST: Saturated mobile networks

All apps require compatible wireless service connection and usage rates apply.

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