To build its 44,000-mile web of highways, bridge and tunnels, hundreds of unique engineering designs and solutions had to be worked out.

为了建造长达4.4万英里的公路、桥梁和隧道网络，必须设计出数百种独特的工程设计和解决方案。

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To build its 44,000-mile web of highways, bridges, and tunnels, hundreds of unique engineering designs and solutions had to be worked out.

为了建造长达4.4万英里的公路、桥梁和隧道网络，必须设计出数百种独特的工程设计和解决方案。

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It provided reliable basis for the engineering designs and supports.

为工程设计与支护提供了可靠的依据。

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Visioneers base their imaginings on detailed engineering studies and technical designs.

FORBES: We May Not Have Flying Cars Yet, But Visioneers Are Inventing a New Future

Its regional operations in North America, Europe and Asia (not to mention South America and Australia) operate almost autonomously, selling vehicles like the Focus that are similar but often based on unique designs and engineering.

FORBES: Back To The Future

The Detroit News and Detroit Free Press both reported Friday that GM is moving the engineers -- who have been working on the fuel-cell technology in the company's advanced development laboratories division -- to the company's core production engineering division, which designs vehicles to be brought into production.

CNN: GM takes step toward fuel-cell car