The first session focuses on software still in the concept stage, called Bing DeskBar.

会议的第一部分关注仍然停留在概念阶段的软件，叫做Bing DeskBar。

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Defining this model is the necessary intermediary step between the concept stage and implementation stage.

对模型进行定义是概念阶段和实现阶段之间的必要中间步骤。

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Safety starts with the concept stage where consideration of reducing risk is integrated into the design.

安全的概念开始阶段，审议减少风险纳入设计。

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The approach is still in the proof-of-concept stage and is not yet commercially available.

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The "soccer moms" never put it to the test though, as the Windstar Solutions never cruised past the concept stage.

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However there have been issues over aspects of the proposals which has meant no scheme has been developed past the concept stage.

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