Rule mapping start and end dates are another alternative for controlling when rules become live.

规则映射的开始和结束日期是控制规则何时生效的另一种备选方案。

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You can use campaign and rule mapping start and end dates to control when rules become effective for certain spots.

您可以使用活动和规则映射的开始和结束日期来控制规则在某一点生效。

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Now, listen to the melody generated by applying this mapping to rule 150.

现在，聆听把映射应用到150号规则所产生的旋律。

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For much of this year, the commission's reason for blocking the iPhone was that its built-in mapping capabilities violate a South Korean rule requiring the use of domestic technology for location-based services in cellphones.

WSJ: South Korea Clears Way for iPhone Sales