但为了方便，保质期，你可以吧干果作为后备计划。

But for convenience and shelf life, use dried fruit as your back-up plan.

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新车头的动力主要来自两部大型电池，柴油机仅作为后备。

The main motive power comes from two large batteries. The diesel is merely a backup.

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使用TDS发现IBM NAS服务器，包括作为后备机制的缺省配置。

IBM NAS server discovery using TDS, including the default configuration as a fallback mechanism.

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