The system can also be built completely from scratch, directly from source code (Linux from scratch).

该系统还可以建立完全从头开始，直接从源代码(Linux系统从零开始)。

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They are not starting completely from scratch, but can draw on lessons learned in the desert, such as how best to combine software and sensors.

他们并非完全从头开始，而可以汲取沙漠赛中得到的教训，例如如何使软件和传感器最佳组合。

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In cases where you cannot find any reusable material at all, you can create a completely new process from scratch.

在你无法找到任何可复用材料的情况下，你可以从头创造一个全新的过程。

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But for customers who want something truly special, 3x1 will create a one-off trouser completely from scratch.

FORBES: Magazine Article

You will also find centralised research options in big cities, for instance Edinburgh, Dublin and London can be good places to begin your search if you are completely starting from scratch.

BBC: A trip back to your roots

Outside, Umansky said Lachey completely built up the pool and entertainment area from scratch, adding a new pool, Jacuzzi, barbecue and outdoor dining area, each surrounded by the nearly 360 degree views.

FORBES: Connect