The billing policies are not part of the service; they constitute an external element that the billing service makes use of.

账单策略并不是账单服务的组成部分；它们是账单服务使用的外部元素。

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The 'room in room system' creates views through all the rooms of the living and office areas and out onto the central external element, the garden atrium.

“房中房”的格局让视线可以毫无障碍地穿过生活区域和办公区域，到达中心的外部空间—花园。

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More significantly, many streams depend on external events, and yet should be processed as each element is available.

更重要的是，许多流取决于外部事件，并且当每个元素可用时，才处理这些流。

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As the first step towards the commercialization of its new CMOS image sensors, Sony has developed a model with built-in signal processing functionality, an element that usually requires external embedment.

ENGADGET: Sony's new cameraphone CMOS jams bigger gear into the same space (video)

In low external temperatures, the battery is quickly brought up to operating temperature with the aid of an electric heating element.

ENGADGET: Visualized: Mercedes-Benz SLS AMG E-Cell bares all